Merge pull request matplotlib#10870 from anntzer/doctitle

Restore main doc page <title>.

Author: jklymak

doc/index.rst

@@ -1,5 +1,7 @@
 :orphan:
 
+.. title:: Matplotlib: Python plotting
+
 Matplotlib is a Python 2D plotting library which produces publication quality
 figures in a variety of hardcopy formats and interactive environments across
 platforms.  Matplotlib can be used in Python scripts, the Python and IPython_