doc: streamline sections Contributing, MSRV, and License

Copy MSRV, License, and Contributing sections to lib.rs and streamline it
with the README equivalents. We should also include these information in
lib.rs, as it is the main entry point into everything relevant about the
library. At least, it should from now on.

The big benefit is that the documentation on `docs.rs` then covers
everything relevant.

Author: phip1611

README.md

@@ -122,11 +122,14 @@ most of the library's functionality.
 Check out the testing project's [`README.md`](uefi-test-runner/README.md) for
 prerequisites for running the tests.
 
-## Contributing
+# Discuss and Contribute
 
-We welcome issues and pull requests! For instructions on how to set up a
-development environment and how to add new protocols, check out
-[CONTRIBUTING.md](CONTRIBUTING.md).
+For general discussions, feel free to join us in our [Zulip] and ask
+your questions there.
+
+Further, you can submit bugs and also ask questions in our [issue tracker].
+Contributions in form of a PR are also highly welcome. Check our
+[contributing guide](./CONTRIBUTING.md) for details.
 
 ## License
 
@@ -135,3 +138,6 @@ This license allows you to use the crate in proprietary programs, but any
 modifications to the files must be open-sourced.
 
 The full text of the license is available in the [license file](LICENSE).
+
+
+[Zulip]: https://rust-osdev.zulipchat.com

uefi/src/lib.rs

@@ -9,8 +9,12 @@
 //! important UEFI concepts. For more details of UEFI, see the latest [UEFI
 //! Specification][spec].
 //!
-//! Feel free to file bug reports and questions in our [issue tracker], and [PR
-//! contributions][contributing] are also welcome!
+//! # About this Document
+//!
+//! In this document, you find general information about this crate, such
+//! as examples and the technical documentation of the public API, as well
+//! as general information about the project, such as license or MSRV
+//! requirements.
 //!
 //! # Interaction with uefi services
 //!
@@ -76,6 +80,30 @@
 //! only unfold their potential when you invoke `uefi::helpers::init` as soon
 //! as possible in your application.
 //!
+//! # Discuss and Contribute
+//!
+//! For general discussions, feel free to join us in our [Zulip] and ask
+//! your questions there.
+//!
+//! Further, you can submit bugs and also ask questions in our [issue tracker].
+//! Contributions in form of a PR are also highly welcome. Check our
+//! [contributing guide][contributing] for details.
+//!
+//! # MSRV
+//! <!-- Keep in Sync with README! -->
+//!
+//! The minimum supported Rust version is currently 1.70.
+//! Our policy is to support at least the past two stable releases.
+//!
+//! # License
+//! <!-- Keep in Sync with README! -->
+//!
+//! The code in this repository is licensed under the Mozilla Public License 2.
+//! This license allows you to use the crate in proprietary programs, but any
+//! modifications to the files must be open-sourced.
+//!
+//! The full text of the license is available in the [license file][LICENSE].
+//!
 //! # Trivia and Background
 //!
 //! [UEFI] started as the successor firmware to the BIOS in x86 space and
@@ -89,6 +117,7 @@
 //!
 //! [Rust UEFI Book]: https://rust-osdev.github.io/uefi-rs/HEAD/
 //! [UEFI]: https://uefi.org/
+//! [Zulip]: https://rust-osdev.zulipchat.com
 //! [`BootServices`]: table::boot::BootServices
 //! [`GlobalAlloc`]: alloc::alloc::GlobalAlloc
 //! [`SystemTable`]: table::SystemTable