Update app.py

app.py

@@ -33,7 +33,9 @@ This tool lets you check if a repository under a given username is part of The S
 opt_out_text_template = """\
 ### Opt-out
 
-If you want your data to be removed from the stack and model training open an issue with [this link](https://github.com/bigcode-project/opt-out-v2/issues/new?title={title}&body={body}).\
+If you want your data to be removed from the stack and model training \ 
+
+open an issue with <a href="https://github.com/bigcode-project/opt-out-v2/issues/new?title={title}&body={body}" target="_blank">this link</a>.\
 """
 
 opt_out_issue_title = """Opt-out request for {username}"""