issue_100_4 Updated the rustc documentation location

src/compiler-documenting.md

@@ -54,3 +54,9 @@ When you want to build the compiler docs as well run this command:
 
 This will see that the docs and compiler-docs options are set to true
 and build the normally hidden compiler docs!
+
+### Compiler Documentation
+
+The documentation for the rust components are found at [rustc doc].
+
+[rustc doc]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc/

src/how-to-build-and-run.md

@@ -330,3 +330,9 @@ everything up then you only need to run one command!
    ```bash
    > ./x.py clean
    ```
+
+### Compiler Documentation
+
+The documentation for the rust components are found at [rustc doc].
+
+[rustc doc]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc/