test(NODE-4160): update test readme

Author: durran

test/readme.md

@@ -26,11 +26,12 @@ Below is a summary of the types of test automation in this repo.
 | Type of Test            | Test Location       | About the Tests                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | How to Run Tests                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
 | ----------------------- | ------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | Unit                    | `/test/unit`        | The unit tests test individual pieces of code, typically functions. These tests do **not** interact with a real database, so mocks are used instead. <br><br>The unit test directory mirrors the `/src` directory structure with test file names matching the source file names of the code they test.                                                                                                                                                                                          | `npm run check:unit`                                                                                                                                                                                                                                                                                                                                                                                                                                              |
-| Integration             | `/test/integration` | The integration tests test that a given feature or piece of a feature is working as expected. These tests do **not** use mocks; instead, they interact with a real database. <br><br> The integration test directory follows the `test/spec` directory structure representing the different functional areas of the driver. <br><br> **Note:** The `.gitkeep` files are intentionally left to ensure that this directory structure is preserved even as the actual test files are moved around. |
+| Integration             | `/test/integration` | The integration tests test that a given feature or piece of a feature is working as expected. These tests do **not** use mocks; instead, they interact with a real database. <br><br> The integration test directory follows the `test/spec` directory structure representing the different functional areas of the driver. <br><br> **Note:** The `.gitkeep` files are intentionally left to ensure that this directory structure is preserved even as the actual test files are moved around. | `npm run check:test`                                                                                                                                                                                                                                                                                                                                                                                                                                              |
 | Benchmark               | `/test/benchmarks`  | The benchmark tests report how long a designated set of tests take to run. They are used to measure performance.                                                                                                                                                                                                                                                                                                                                                                                | `npm run check:bench`                                                                                                                                                                                                                                                                                                                                                                                                                                             |
 | Specialized Environment | `/test/manual`      | The specalized environment tests are functional tests that require specialized environment setups in Evergreen. <br><br>**Note**: "manual" in the directory path does not refer to tests that should be run manually. These tests are automated. These tests have a special Evergreen configuration and run in isolation from the other tests.                                                                                                                                                  | There is no single script for running all of the specialized environment tests. Instead, you can run the appropriate script based on the specialized environment you want to use: <br>- `npm run check:atlas` to test Atlas <br>- `npm run check:adl` to test Atlas Data Lake <br>- `npm run check:ocsp` to test OSCP <br>- `npm run check:kerberos` to test Kerberos <br>- `npm run check:tls` to test TLS <br>- `npm run check:ldap` to test LDAP authorization |
 | TypeScript Definition   | `/test/types`       | The TypeScript definition tests verify the type definitions are correct.                                                                                                                                                                                                                                                                                                                                                                                                                        | `npm run check:tsd`                                                                                                                                                                                                                                                                                                                                                                                                                                               |
 | Github Actions          | `/test/action`      | Tests that run as Github actions such as dependency checking.                                                                                                                                                                                                                                                                                                                                                                                                                                   | Currently only `npm run check:dependencies` but could be expanded to more in the future.                                                                                                                                                                                                                                                                                                                                                                          |
+| Code Examples           | `/test/examples`    | Code examples that are also paired with tests that show they are working examples.                                                                                                                                                                                                                                                                                                                                                                                                              | Currently `npm run check:lambda` to test the AWS Lambda example with default auth and `npm run check:lambda:aws` to test the AWS Lambda example with AWS auth.                                                                                                                                                                                                                                                                                                    |
 
 ### Spec Tests