Update readme

don't need to install planet sdk with the mcp server
pin to at least 3.0 of the python sdk.

Author: angaither

README.md

@@ -20,15 +20,16 @@ Thanks
 
 ### Prerequisites
 
-1. Python
-2. Planet SDK
+1. Python 3.11 or higher
 
-To install the Planet SDK and MCP server, use `pip` or your preferred package manager:
+To install the Planet MCP server, use `pip` or your preferred package manager:
 
 ```
-pip install planet planet-mcp
+pip install planet-mcp
 ```
 
+This will also install the planet SDK.
+
 ### Authentication
 
 You must authenticate your Planet account before using the local MCP server. You can do this by running:

pyproject.toml

@@ -5,7 +5,7 @@ readme = "README.md"
 dependencies = [
     "aiocache>=0.12.3",
     "fastmcp==2.11.0",
-    "planet==3.0.0",
+    "planet>=3.0.0",
     "uv",
     "mercantile>=1.2.1",
 ]