Update spectacles/client.py

Co-authored-by: Josh Temple <8672171+joshtemple@users.noreply.github.com>

Author: DylanBaker

spectacles/client.py

@@ -644,7 +644,7 @@ async def get_lookml_fields(
 
         Returns:
             List[str]: Names of all the fields in the specified explore. Field
-                names are returned in the format 'explore_name.field_na'.
+                names are returned in the format 'explore_name.field_name'.
 
         """
         logger.debug(f"Getting all fields from explore {model}/{explore}")