Fix links to documentation.

1. Links to the programming chapter were broken after 69c74f850e. They're now fixed with a redirect in readthedocs.io, but this commit updates them to the latest URL.

2. Most docs links should point to "stable" instead of "latest", since most users will want the docs for the released version, not the upcoming version. The exceptions are the programming chapter, and instructions for building the Python bindings from source.

PiperOrigin-RevId: 502821526
Change-Id: If0a55ab2be4751ba0165bf644030464234083133

python/README.md

@@ -47,7 +47,7 @@ If you need to build the Python bindings from source, please consult
 ## Usage
 
 Once installed, the package can be imported via `import mujoco`. Please consult
-our [documentation](https://mujoco.readthedocs.io/en/latest/python.html) for
+our [documentation](https://mujoco.readthedocs.io/en/stable/python.html) for
 further detail on the package's API.
 
 We recommend going through the tutorial notebook which covers the basics of

python/mujoco/render_test.py

@@ -36,7 +36,7 @@ class MuJoCoRenderTest(absltest.TestCase):
     """Test that the bindings can successfully render a simple image.
 
     This test sets up a basic MuJoCo rendering context similar to the example in
-    https://mujoco.readthedocs.io/en/latest/programming.html#visualization
+    https://mujoco.readthedocs.io/en/latest/programming#visualization
     It calls `mjr_rectangle` rather than `mjr_render` so that we can assert an
     exact rendered image without needing golden data. The purpose of this test
     is to ensure that the bindings can correctly return pixels in Python, rather