Fix broken link in docs to Cline tools implementation (#6120)

docs/exploring-clines-tools/cline-tools-guide.mdx

@@ -56,7 +56,7 @@ Cline is your AI assistant that can:
 
 ## Available Tools
 
-For the most up-to-date implementation details, you can view the full source code in the [Cline repository](https://github.com/cline/cline/blob/main/src/core/Cline.ts).
+For the most up-to-date implementation details, you can view the full source code in the [Cline repository](https://github.com/cline/cline/blob/main/src/core/prompts/system-prompt/tools).
 
 Cline has access to the following tools for various tasks: