Organize the getting started menu (#708)

* Create installation.md

* Delete installation.md

* Create installation.md

* Update installation.md

* Update README.md

* Update mkdocs.yml

* Update apis_and_tokens.md

* Update README.md

* Delete installation.md

* Update README.md

* Update mkdocs.yml

README.md

@@ -64,10 +64,12 @@ Keep up with the latest updates by visiting the releases page - [Releases](https
 <details open>
   <summary><strong>Getting Started</strong></summary>
 
-  * [Docker Install](docs/install/docker_install.md)
-  * [Linux Install](docs/install/linux_install.md)
-  * [Mac Install](docs/install/mac_install.md)
-  * [Windows Install](docs/install/windows_install.md)
+  * Installation
+    * [Docker Install🐳](docs/install/docker_install.md)
+    * [Linux Install🐧](docs/install/linux_install.md)
+    * [Mac Install🍎](docs/install/mac_install.md)
+    * [Windows Install💙](docs/install/windows_install.md)
+  * Configuration
     * [APIs and Tokens](docs/install/apis_and_tokens.md)
     * [User Auth System](docs/install/user_auth_system.md)
     * [Online MongoDB Database](docs/install/mongodb.md)

docs/install/apis_and_tokens.md

@@ -107,6 +107,7 @@ These steps are quick workarounds as other solutions would require renaming envi
 ## That's it! You're all set. 🎉
 
 ---
-
+ ## [Free AI APIs](free_ai_apis.md)
+---
 ### Note: If you're still having trouble, before creating a new issue, please search for similar ones on our [#issues thread on our discord](https://discord.gg/weqZFtD9C4) or our [troubleshooting discussion](https://github.com/danny-avila/LibreChat/discussions/categories/troubleshooting) on our Discussions page. If you don't find a relevant issue, feel free to create a new one and provide as much detail as possible.
 

mkdocs.yml

@@ -81,10 +81,12 @@ nav:
     - Tech Stack: 'general_info/tech_stack.md'  
     - Multilingual Information: 'general_info/multilingual_information.md'
   - Installation Guides:
+    - Installation:
         - Docker Install: 'install/docker_install.md'
         - Linux Install: 'install/linux_install.md'
         - Mac Install: 'install/mac_install.md'
         - Windows Install: 'install/windows_install.md'
+    - Configuration:
         - Free AI APIs: 'install/free_ai_apis.md'
         - APIs and Tokens: 'install/apis_and_tokens.md'
         - User Auth System: 'install/user_auth_system.md'