small doc change : fixing formatting in list of tool functions , inside README.md

search_code was misalligned. fixed it in README.

Author: divyanshvn

README.md

@@ -477,7 +477,7 @@ export GITHUB_MCP_TOOL_ADD_ISSUE_COMMENT_DESCRIPTION="an alternative description
   - `page`: Page number, for files in the commit (number, optional)
   - `perPage`: Results per page, for files in the commit (number, optional)
 
-  - **search_code** - Search for code across GitHub repositories
+- **search_code** - Search for code across GitHub repositories
   - `query`: Search query (string, required)
   - `sort`: Sort field (string, optional)
   - `order`: Sort order (string, optional)