Update structure.rst

bryanj4 · bryanj4 · commit 4e3b235a1c7f · 2016-03-08T16:31:44.000-06:00
Updated a broken link to the pip website which explains a pip requirements file
diff --git a/docs/writing/structure.rst b/docs/writing/structure.rst
@@ -147,7 +147,7 @@ Requirements File
 
 
 A `pip requirements
-file <http://www.pip-installer.org/en/latest/requirements.html>`__
+file https://pip.pypa.io/en/stable/user_guide/#requirements-files>`__
 should be placed at the root of the repository. It should specify the
 dependencies required to contribute to the project: testing, building,
 and generating documentation.
