Fix Gitty prompt message (#6473)

Author: emmanuel-ferdman

python/samples/gitty/src/gitty/_gitty.py

@@ -125,8 +125,8 @@ async def run_gitty(owner: str, repo: str, command: str, number: int) -> None:
         console.print("  [observe]> No related issues found.[/observe]")
 
     updated_prompt = (
-        f"Considering the additional context:\n"
-        "You are workin on issue #{number} for the {owner}/{repo} repository. "
+        "Considering the additional context:\n"
+        f"You are working on issue #{number} for the {owner}/{repo} repository. "
         "The issue content is:\n"
         f"{text}\n\n"
         "You also previously fetched related issues that may or may not be relevant"