📝 Fix small typo in docs for features (#380)

docs/features.md

@@ -37,7 +37,7 @@ from datetime import date
 
 from pydantic import BaseModel
 
-# Declare a variable as an str
+# Declare a variable as a str
 # and get editor support inside the function
 def main(user_id: str):
     return user_id