Update README.md

README.md

@@ -1,20 +1,23 @@
-# Bare-metal and Operating System development tutorials in Rust on the Raspberry Pi 3
+# Operating System development tutorials in Rust on the Raspberry Pi 3
 
 ## Notice
 
-**This is a work-in-progress rewrite started on September 2019. I will first add
+**This is a work-in-progress rewrite, started on September 2019. I will first add
 code and minimal READMEs, and later write accompanying full-fledged tutorial
 text.**
 
 - Check out the `make doc` command to browse the code with HTML goodness.
 - Note that the branch is subject to frequent force pushing. If updates happened
   since you last visited, make sure to clone a clean copy to be safe.
+- For editing, I recommend [Visual Studio Code] with the [Rust Language Server] extension.  
 - For practical purposes, the kernel will be a classic [monolith].
 
 _Cheers,
 [Andre](https://github.com/andre-richter)_
 
  [monolith]: https://en.wikipedia.org/wiki/Monolithic_kernel
+ [Visual Studio Code]: https://code.visualstudio.com
+ [Rust Language Server]: https://github.com/rust-lang/rls
 
 ## Prerequisites
 
@@ -31,7 +34,7 @@ curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly-YOUR_DATE_
 # For example:
 # curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly-2019-09-05
 
-rustup component add rust-src llvm-tools-preview clippy
+rustup component add rust-src llvm-tools-preview clippy rustfmt
 cargo install cargo-xbuild cargo-binutils
 ```