docs: add JetBrains AI Assistant and Junie (#126)

JetBrains AI Assistant and Junie also support MCP, this PR describes the
necessary configuration.

---------

Co-authored-by: Sebastian Benz <sebastian.benz@gmail.com>
Co-authored-by: Sebastian Benz <sbenz@google.com>

Author: niklas-wortmann

README.md

@@ -112,6 +112,14 @@ Go to `Cursor Settings` -> `MCP` -> `New MCP Server`. Use the config provided ab
   using the standard config from above.
 </details>
 
+<details>
+  <summary>JetBrains AI Assistant & Junie</summary>
+
+Go to `Settings | Tools | AI Assistant | Model Context Protocol (MCP)` -> `Add`. Use the config provided above.
+The same way chrome-devtools-mcp can be configured for JetBrains Junie in `Settings | Tools | Junie | MCP Settings` -> `Add`. Use the config provided above.
+
+</details>
+
 ### Your first prompt
 
 Enter the following prompt in your MCP Client to check if everything is working: