🧹📚 docs: refactor and clean up (#1392)

* 📑 update mkdocs

* rename docker override file and add to gitignore

* update .env.example - GOOGLE_MODELS

* update index.md

* doc refactor: split installation and configuration in two sub-folders

* doc update: installation guides

* doc update: configuration guides

* doc: new docker override guide

* doc: new beginner's guide for contributions - Thanks @Berry-13

* doc: update documentation_guidelines.md

* doc: update testing.md

* doc: update deployment guides

* doc: update /dev readme

* doc: update general_info

* doc: add 0 value to doc weight

* doc: add index.md to every doc folders

* doc: add weight to index.md and move openrouter from free_ai_apis.md to ai_setup.md

* doc: update toc so they display properly on the right had side in mkdocs

* doc: update pandoranext.md

* doc: index logging_system.md

* doc: update readme.md

* doc: update litellm.md

* doc: update ./dev/readme.md

* doc:🔖 new presets.md

* doc: minor corrections

* doc update: user_auth_system.md and presets.md, doc feat: add mermaid support to mkdocs

* doc update: add screenshots to presets.md

* doc update: add screenshots to - OpenID with AWS Cognito

* doc update: BingAI cookie instruction

* doc update: discord auth

* doc update: facebook auth

* doc: corrections to user_auth_system.md

* doc update: github auth

* doc update: google auth

* doc update: auth clean up

* doc organization: installation

* doc organization: configuration

* doc organization: features+plugins & update:plugins screenshots

* doc organization: deploymend + general_info  & update: tech_stack.md

* doc organization: contributions

* doc: minor fixes

* doc: minor fixes

docs/features/plugins/chatgpt_plugins_openapi.md

@@ -1,3 +1,7 @@
+---
+title: 🧑‍💼 Official ChatGPT Plugins
+weight: -8
+---
 # Using official ChatGPT Plugins / OpenAPI specs
 
 ChatGPT plugins are API integrations for OpenAI models that extend their capabilities. They are structured around three key components: an API, an **OpenAPI specification** (spec for short), and a JSON **Plugin Manifest** file. 
@@ -7,15 +11,19 @@ To learn more about them, or how to make your own, read here: [ChatGPT Plugins:
 Thanks to the introduction of [OpenAI Functions](https://openai.com/blog/function-calling-and-other-api-updates) and their utilization in [Langchain](https://js.langchain.com/docs/modules/chains/openai_functions/openapi), it's now possible to directly use OpenAI Plugins through LibreChat, without building any custom langchain tools. The main use case we gain from integrating them to LibreChat is to allow use of plugins with gpt-3.5 models, and without ChatGPT Plus. They also find a great use case when you want to limit your own private API's interactions with chat.openai.com and their servers in favor of a self-hosted LibreChat instance.
 
 ### Table of Contents
-- [Intro](#intro)
-- [Adding a Plugin](#adding-a-plugin)
-- [Editing Manifest Files](#editing-manifest-files)
-  - [Override Parameter Values](#override-parameter-values)
-  - [Add Header Fields](#add-header-fields)
-  - [Custom OpenAPI Spec files](#custom-openapi-spec-files)
-  - [Plugins with Authentication](#plugins-with-authentication)
-- [Showcase](#showcase)
-- [Disclaimers](#disclaimers)
+- [Using official ChatGPT Plugins / OpenAPI specs](#using-official-chatgpt-plugins--openapi-specs)
+    - [Table of Contents](#table-of-contents)
+  - [Intro](#intro)
+    - [**Plugin Manifest File:**](#plugin-manifest-file)
+    - [**OpenAPI Spec**](#openapi-spec)
+  - [Adding a Plugin](#adding-a-plugin)
+  - [Editing Manifest Files](#editing-manifest-files)
+    - [Override Parameter Values](#override-parameter-values)
+    - [Add Header Fields](#add-header-fields)
+    - [Custom OpenAPI Spec files](#custom-openapi-spec-files)
+    - [Plugins with Authentication](#plugins-with-authentication)
+    - [Showcase](#showcase)
+  - [Disclaimers](#disclaimers)
 
 ## Intro