DOC: fix typo (#22994)

matjansen · web-flow · commit 8b2d137ec29d · 2022-03-30T13:23:18.000+02:00
diff --git a/doc/developers/develop.rst b/doc/developers/develop.rst
@@ -306,7 +306,7 @@ the correct interface more easily.
       ...
       ...     def predict(self, X):
       ...
-      ...         # Check is fit had been called
+      ...         # Check if fit has been called
       ...         check_is_fitted(self)
       ...
       ...         # Input validation
