Initial MCP enabling and server config guide (#6)

* Initial MCP enabling and server config guide

* MCP guide improvements

Author: kostisd

docs/user-guide/configurations.md

@@ -88,4 +88,28 @@ Datasource profiles.yml.
 DATU_DBT_PROFILES=
 ```
 
+#### MCP related configuration
+
+##### Enable MCP Connectivity
+
+Set the following environment variable to enable MCP connectivity in Datu:
+
+```sh
+DATU_ENABLE_MCP=true
+```
+
+##### MCP Servers Configuration
+Define your MCP servers in a JSON config file (e.g. mcp_config.json):
+
+```sh
+{
+  "mcpServers": {
+    "sql_generator": {
+      "command": "python",
+      "args": ["-m", "datu.mcp.tools.sql_generator"],
+      "env": { "PYTHONPATH": "." }
+    }
+  }
+}
+```
 

mkdocs.yml

@@ -56,7 +56,12 @@ nav:
         - user-guide/configurations.md
     - Deploy:
       - Container service: user-guide/deploy/deploy_as_container_service.md
+    - MCP Connectivity:
+        - user-guide/MCP Connectivity/mcp_connectivity.md
     - Contribute ❤️: https://github.com/Datuanalytics/datu-core/blob/main/CONTRIBUTING.md
+
+
+
   - Architecture:
     - Overview: architecture/README.md
   - Contribute ❤️: https://github.com/Datuanalytics/datu-core/blob/main/CONTRIBUTING.md