`TextServerExtension`, `RenderingServer` show as 100% but are missing coverage

[ScatteredComet]

At the moment, the table generated from godotengine/godot@74b5be24f shows TextServerExtension as 100% but it's missing 1 method:

RenderingServer also has the same issue:

I guess doc_status.py is rounding to 100%; might it be more useful to display 99.x% as 99%? Then the color coding would be accurate.

[ScatteredComet]

This also means that sorting by 'Overall' ascending doesn't show pages with missing documentation first:

e.g. RenderingServer is mixed in with lots of actual 100% pages.