🦙 doc: add Ollama to index and update icon (#1967)

docs/install/configuration/index.md

@@ -14,6 +14,7 @@ weight: 2
 ---
   * 🤖 [AI Setup](./ai_setup.md)
   * 🚅 [LiteLLM](./litellm.md)
+  * 🦙 [Ollama](./ollama.md)
   * 💸 [Free AI APIs](./free_ai_apis.md)
 ---
   * 🛂 [Authentication System](./user_auth_system.md) 

docs/install/configuration/ollama.md

@@ -1,5 +1,5 @@
 ---
-title: 🚅 Ollama
+title: 🦙 Ollama
 description: Using LibreChat with Ollama 
 weight: -6
 ---

docs/install/index.md

@@ -23,6 +23,7 @@ weight: 1
   * 🐋 [Docker Compose Override](./configuration/docker_override.md)
   * 🤖 [AI Setup](./configuration/ai_setup.md)
   * 🚅 [LiteLLM](./configuration/litellm.md)
+  * 🦙 [Ollama](./configuration/ollama.md)
   * 💸 [Free AI APIs](./configuration/free_ai_apis.md) 
   * 🛂 [Authentication System](./configuration/user_auth_system.md) 
   * 🍃 [Online MongoDB](./configuration/mongodb.md)