Refactor MkDocs configuration to improve navigation (#536)

* Add Giscus comments integration and update MkDocs configuration

- Introduced a new .markdownlint.json file to manage markdown linting rules.
- Updated mkdocs.yml to enhance theme features and added offline plugin for improved performance.
- Added new JavaScript files for Giscus comments functionality, including client and debug scripts.
- Created a new comments partial to integrate Giscus comments into the documentation.
- Removed outdated footer.html to streamline the comments integration process.

* Add .meta.yml files for solutions and resources to enable comments functionality

* Enable directory URLs in MkDocs configuration for cleaner navigation

* Refactor MkDocs configuration to improve navigation and add new documentation files

- Updated navigation paths in mkdocs.yml to point to local documentation files for About, Contributing, License, and Changelog.
- Commented out the offline plugin for potential future use.
- Added new symbolic links for About, Contributing, License, and Changelog documents in the docs directory.

Author: ido777

docs/CHANGELOG.md

@@ -0,0 +1 @@
+../CHANGELOG.md

docs/CONTRIBUTING.md

@@ -0,0 +1 @@
+../CONTRIBUTING.md

docs/LICENSE.md

@@ -0,0 +1 @@
+../LICENSE.md

docs/about.md

@@ -0,0 +1 @@
+../README.md

docs/solutions/.meta.yml

@@ -0,0 +1 @@
+comments: true

mkdocs.yml

@@ -125,10 +125,10 @@ markdown_extensions:
 
 nav:
   - Home: en/index.md
-  - About: https://github.com/ido777/system-design-primer-update/blob/main/README.md
-  - Contributing: https://github.com/ido777/system-design-primer-update/blob/main/CONTRIBUTING.md
-  - License: https://github.com/ido777/system-design-primer-update/blob/main/LICENSE.md
-  - Changelog: https://github.com/ido777/system-design-primer-update/blob/main/CHANGELOG.md
+  - About: about.md
+  - Contributing: CONTRIBUTING.md
+  - License: LICENSE.md
+  - Changelog: CHANGELOG.md
   - English:
       - Overview: en/index.md
       - Study Guide Start Here: en/study_guide.md

resources/.meta.yml

@@ -0,0 +1 @@
+comments: true