docs: fix the documentation typo on Extend Functionality page. (#2773)

docs/extend.rst

@@ -10,7 +10,7 @@ Extend functionality
 Python discovery
 ----------------
 
-The python discovery mechanism is a component that needs to answer the following answer: based on some type of user
+The python discovery mechanism is a component that needs to answer the following question: based on some type of user
 input give me a Python interpreter on the machine that matches that. The builtin interpreter tries to discover
 an installed Python interpreter (based on PEP-515 and ``PATH`` discovery) on the users machine where the user input is a
 python specification. An alternative such discovery mechanism for example would be to use the popular