minor docs updates

Author: serkonda7

CHANGELOG.md

@@ -1,4 +1,10 @@
 # Changelog
+## 0.9.4
+_unreleased_
+
+- Highlight `Implements` keyword
+
+
 ## 0.9.3
 _24 September 2023_
 

CONTRIBUTING.md

@@ -1,31 +1,36 @@
 # Contributing Guide
 Thanks for your interest in improving vscode-vba!
 
+
 ## Creating Issues
 Report bugs or suggest new features.
 
 Before opening a issue, please first search in [open issues][issues] to check it is not already reported.
 
 In case your issue already exists, add a reaction and if possible, comment with further information.
 
+
 ## Creating Pull Requests
 > Before making bigger changes, please discuss them in an issue.
 
 In general PRs should be kept as small as possible (e.g. one feature/fix per PR).
 It allows merging them faster with less conflicts and will reduce review time.
 
+
 ### Repository Setup
 - Install the Bait programming language: https://github.com/tiabeast/bait#building-from-source
 - Create and clone a fork of https://github.com/serkonda7/vscode-vba
 - Run `npm install` inside the cloned directory
 - Create a new working branch for your changes
 
-## Regexes
-TextMate uses Oniguruma regexes which are mostly compatible with PCRE.
-A quite decent overview and comparison can be found here: https://rbuckton.github.io/regexp-features/engines/oniguruma.html
 
+## Regexes and TextMate Scopes (Syntax Highlighting)
+TextMate uses Oniguruma regexes which are mostly compatible with PCRE ([Compariosn][oniguruma-overview]).
 A good tool to test these regexes is https://regexr.com/ in PCRE mode.
 
+For a list of predefined scopes see https://macromates.com/manual/en/language_grammars#naming_conventions.
+
+
 ### Unit Tests
 Every PR should contain a test case that covers the added feature or bug fix.
 This prevents regressions and makes reviewing the changes easier by providing a proof of correct functionality.
@@ -36,6 +41,7 @@ They can be run with the following command:
 npm run test
 ```
 
+
 ### Install a dev version
 If you'd like to install a development version of the extension, follow these steps:
 1. ```sh
@@ -47,5 +53,7 @@ If you'd like to install a development version of the extension, follow these st
 
 > Note: It is not required to uninstall any previous versions.
 
+
 <!-- links -->
 [issues]: https://github.com/serkonda7/vscode-vba/issues
+[oniguruma-overview]: https://rbuckton.github.io/regexp-features/engines/oniguruma.html