Revert "update 2026-02-26 19-08-26"

clean6378-max-it · clean6378-max-it · commit 645737670c5f · 2026-02-26T19:49:06.000+08:00
This reverts commit 5b97159.
diff --git a/README.md b/README.md
@@ -511,7 +511,7 @@ npm run build
 npm test
 ```
 
-+### Testing the keyword_search tool
+### Testing the keyword_search tool
 
 1. **Connectivity and keyword search (script):**  
    Run the search test script (includes a keyword search step against the sparse index):
