chore: add mcp to changelog

Signed-off-by: Mark Phelps <209477+markphelps@users.noreply.github.com>

Author: markphelps

changelog/overview.mdx

@@ -6,6 +6,12 @@ mode: "wide"
 
 <Update label="March 2025">
 
+## Model Context Protocol (MCP)
+
+Flipt now supports the [Model Context Protocol (MCP)](/tooling/model-context-protocol) which allows AI assistants and LLMs to directly interact with your feature flags, segments, and evaluations through a standardized interface.
+
+See the [Model Context Protocol docs](/tooling/model-context-protocol) for more information.
+
 ## Android Client-Side SDK
 
 Just released the Android SDK client for client-side flag evaluation.