Change Balloon to Tooltip for sphinx documentation

Author: RedFantom

…ets.frames/ttkwidgets.frames.Balloon.rst …ets.frames/ttkwidgets.frames.Tooltip.rstdocs/source/ttkwidgets/ttkwidgets.frames/ttkwidgets.frames.Balloon.rst renamed to docs/source/ttkwidgets/ttkwidgets.frames/ttkwidgets.frames.Tooltip.rst docs/source/ttkwidgets/ttkwidgets.frames/ttkwidgets.frames.Balloon.rst renamed to docs/source/ttkwidgets/ttkwidgets.frames/ttkwidgets.frames.Tooltip.rst

@@ -7,4 +7,4 @@ Tooltip
    :show-inheritance:
    :members:
 
-   .. automethod:: __init__
+   .. automethod:: __init__