Tweak link

Author: astrofrog

peps/pep-0771.rst

@@ -241,7 +241,7 @@ Installing without default extras
 
 In some cases, package maintainers may want to facilitate installing packages
 without any default extras. In this case, as will be shown in more detail in
-`How to teach this`_, the best approach is to define an extra which could be
+`Examples of usage`_, the best approach is to define an extra which could be
 called e.g. ``minimal`` or ``nodefault`` (the naming would be up to the package
 maintainer) which would be an empty set of dependencies. If this extra is
 specified, no default extras will be included, so that e.g. ``package[minimal]``