Change development policy to repackaging on every code change

The previous development policy was to only repackage on each release. This prevented contributors from doing casual
beta testing by simply referencing the action as `arduino/arduino-lint-action@main` in a workflow.

Author: MatteoPologruto

README.md

@@ -103,25 +103,43 @@ To run the tests:
 npm run test
 ```
 
-### 6. Commit
+### 6. Build
+
+It is necessary to compile the code before it can be used by GitHub Actions. We check in the `node_modules` to provide runtime dependencies to the system using the Action, so be careful not to `git add` all the development dependencies you might have under your local `node_modules`. 
+Remember to run these commands before committing any code changes:
+
+```
+npm run build
+```
+
+remove all the dependencies:
+
+```
+rm -rf node_modules
+```
+
+add back **only** the runtime dependencies:
+
+```
+npm install --production
+```
+
+check in the code that matters:
+
+```
+git add lib node_modules
+```
+
+### 7. Commit
 
 Everything is now ready to make your contribution to the project, so commit it to the repository and submit a pull request.
 
 Thanks!
 
 ## Release workflow
 
-We check in the `node_modules` to provide runtime dependencies to the system
-using the Action, so be careful not to `git add` all the development dependencies
-you might have under your local `node_modules`. To release a new version of the
-Action the workflow should be the following:
-
-1. `npm install` to add all the dependencies, included development.
-1. `npm run test` to see everything works as expected.
-1. `npm run build` to build the Action under the `./lib` folder.
-1. `rm -rf node_modules` to remove all the dependencies.
-1. `npm install --production` to add back **only** the runtime dependencies.
-1. `git add lib node_modules` to check in the code that matters.
+To release a new version of the Action the workflow should be the following:
+
 1. If the release will increment the major version, update the action refs in the examples in README.md
    (e.g., `uses: arduino/setup-protoc@v1` -> `uses: arduino/setup-protoc@v2`).
 1. open a PR and request a review.
@@ -143,3 +161,4 @@ If you think you found a vulnerability or other security-related bug in this pro
 Thank you!
 
 e-mail contact: security@arduino.cc
+