chore: link to env docs

docs/config-azure-openai.md

@@ -20,6 +20,9 @@ If you have an `API Endpoint` and `API Key`, you can configure big-AGI as follow
 The deployed models are now available in the application. If you don't have a configured
 Azure OpenAI service instance, continue with the next section.
 
+In addition to using the UI, configuration can also be done using
+[environment variables](environment-variables.md).
+
 ## Setting Up Azure
 
 ### Step 1: Azure Account & Subscription

docs/config-local-lmstudio.md

@@ -37,6 +37,9 @@ Check the URL and modify if different.
 2. Enter the API URL: `http://localhost:1234` (modify if different)
 3. Refresh by clicking on the `Models` button to load models from LM Studio
 
+In addition to using the UI, configuration can also be done using
+[environment variables](environment-variables.md).
+
 ## Troubleshooting
 
 - **Missing @mui/material**: Execute `npm install @mui/material` or `yarn add @mui/material`

docs/config-local-localai.md

@@ -36,6 +36,9 @@ Follow the guide at: https://localai.io/basics/getting_started/
 - Load the models (click on `Models 🔄`)
 - Select the model and chat
 
+In addition to using the UI, configuration can also be done using
+[environment variables](environment-variables.md).
+
 ### Integration: Models Gallery
 
 If the running LocalAI instance is configured with a [Model Gallery](https://localai.io/models/):

docs/config-local-ollama.md

@@ -22,6 +22,9 @@ _Last updated Dec 16, 2023_
    you'll have to press the 'Pull' button again, until a green message appears.
 5. **Chat with Ollama models**: select an Ollama model and begin chatting with AI personas
 
+In addition to using the UI, configuration can also be done using
+[environment variables](environment-variables.md).
+
 **Visual Configuration Guide**:
 
 * After adding the `Ollama` model vendor, entering the IP address of an Ollama server, and refreshing models:<br/>

docs/config-openrouter.md

@@ -22,6 +22,9 @@ This document details the process of integrating OpenRouter with big-AGI.
    ![feature-openrouter-configure.png](pixels/feature-openrouter-configure.png)
 4. OpenAI GPT4-32k and other models will now be accessible and selectable in the application.
 
+In addition to using the UI, configuration can also be done using
+[environment variables](environment-variables.md).
+
 ### Pricing
 
 OpenRouter independently manages its service and pricing and is not affiliated with big-AGI.