Update requirements.txt for Sphinx theme version (#39)

Summary: Pull Request resolved: #39

Reviewed By: d4l3k

Differential Revision: D86238180

Pulled By: svekars

fbshipit-source-id: a9494fdc3e5749d08c76f3d02a3fa8003ab0ca02

Author: svekars

docs/requirements.txt

@@ -1,13 +1,12 @@
 sphinx==7.2.6
--e git+https://github.com/pytorch/pytorch_sphinx_theme.git@pytorch_sphinx_theme2#egg=pytorch_sphinx_theme2
+pytorch_sphinx_theme2==0.2.0
 sphinxcontrib.katex==0.9.10
 matplotlib
 papermill
 ipykernel
 nbsphinx
 jupytext
 ipython_genutils
-pytorch-sphinx-theme2==0.1.0
 jinja2>=3.1.4
 apache-airflow==2.10.5
 breathe==4.36.0  # only if generating C++