Remove note about changing README to index

Author: stsewd

docs/builds.rst

@@ -37,8 +37,6 @@ We will look inside a ``doc`` or ``docs`` directory first,
 and then look within your entire project.
 
 Then Sphinx will build any files with an ``.rst`` extension.
-If you have a ``README.rst``,
-it will be transformed into an ``index.rst`` automatically.
 
 Mkdocs
 ~~~~~~
@@ -50,11 +48,9 @@ we will generate one for you.
 We will look inside a ``doc`` or ``docs`` directory first,
 and then default to the top-level of your documentation.
 
-Then Mkdocs will build any files with an ``.md`` extension.
-If you have a ``README.md``,
-it will be transformed into an ``index.md`` automatically.
-As MkDocs doesn't support automatic PDF generation,
-Read the Docs cannot create a PDF version of your documentation with the *Mkdocs* option.
+Then Mkdocs will build any files with an ``.md`` extension. As MkDocs doesn't
+support automatic PDF generation, Read the Docs cannot create a PDF version of
+your documentation with the *Mkdocs* option.
 
 Understanding what's going on
 -----------------------------