fix documentation home page title (#890)

* fix documentation home page title

* fix line length

* add to what's new

Author: CameronTStark

docs/sphinx/source/index.rst

@@ -1,7 +1,8 @@
 .. image:: _images/pvlib_logo_horiz.png
   :width: 600
 
-========================================
+pvlib python
+============
 
 pvlib python is a community supported tool that provides a set of
 functions and classes for simulating the performance of photovoltaic

docs/sphinx/source/whatsnew/v0.7.2.rst

@@ -22,6 +22,8 @@ Bug fixes
   calls in :py:mod:`pvlib.tests.iotools.test_psm3` (:pull:`873`)
 * Fix issue with :py:class:`pvlib.location.Location` creation when
   passing ``tz=datetime.timezone.utc`` (:pull:`879`)
+* Fix documentation homepage title to "pvlib python" based on first heading on
+  the page. (:pull:`890`) (:issue:`888`)
 
 Documentation
 ~~~~~~~~~~~~~