clarify that 2 steps are only for development

Author: freyfogle

README.md

@@ -35,6 +35,12 @@ cd opencage-geocoding-mcp
 npm install
 ```
 
+This is enough to get the MCP working with Claude Desktop (see below)
+
+If you want to develop the MCP and plan to query the MCP from the command line 
+you will also need to:
+
+
 3. Set your OpenCage geocoding API key as an environment variable:
 
 ```bash