Docs: add version to index.html and change one word

The version is already present in the <title> element but adding it to
the body makes it easyer to find.

docs/index.rst

@@ -3,6 +3,8 @@
 Welcome to pymediainfo's documentation!
 =======================================
 
+This is the documentation for version |version|.
+
 .. toctree::
   :maxdepth: 1
 
@@ -21,7 +23,7 @@ at https://mediaarea.net/en/MediaInfo.
 
   * Binary wheels containing a bundled library version are provided for Windows and Mac OS X.
 
-  * Packages are available for `several major Linux distributions <https://repology.org/metapackage/python:pymediainfo>`_.
+  * Packages are available for `most major Linux distributions <https://repology.org/metapackage/python:pymediainfo>`_.
     They depend on the library most of the time and are the preferred way to use pymediainfo
     on Linux unless a specific version of the package is required.