tree 0a691f254fd17f3dbe99aad431fcfb0f665593f0
parent 587092d3bf4d0fea32d08327d72d1b551e3d4c97
author Scott Todd <scotttodd@google.com> 1636062732 -0700
committer GitHub <noreply@github.com> 1636062732 -0700
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Rename "Optional features" page to "Python bindings and importers". (#7546)

The original "optional features" page was added with a mix of "how to build the python bindings" and "how to configure the CMake build system" (like the previous [cmake_options_and_variables](https://github.com/google/iree/blob/main/docs/developers/get_started/cmake_options_and_variables.md) page) in mind. It only has how to build the Python bindings and TensorFlow-based importers right now though, so renaming seems fine.

I also made a few edits while I was in the area. Preview here: https://scotttodd.github.io/iree/building-from-source/python-bindings-and-importers/

The new name is a bit long (especially in the URL), so other ideas are welcome.
This should at least be easier for people to discover: 
![image](https://user-images.githubusercontent.com/4010439/140418166-265b26f6-7541-4480-9b82-fe08956b5d52.png)