Update README.md

README.md

@@ -47,7 +47,7 @@ Please first localize the bug based on the issue statement, and then generate a
 
 Here is an example:
 
-```diff
+\```diff
 diff --git a/examples/server_async.py b/examples/server_async.py
 --- a/examples/server_async.py
 +++ b/examples/server_async.py
@@ -68,7 +68,7 @@ diff --git a/examples/server_sync.py b/examples/server_sync.py
 +    server = run_sync_server()
      server.shutdown()
 
-```
+\```
 """
 
 # ds = load_dataset("rasdani/github-patches-10k-sample-sorted", split="train")