add docs/requirements.txt for readthedocs.io

Summary: Pull Request resolved: https://github.com/facebookresearch/pytorch3d/pull/5

Reviewed By: gkioxari

Differential Revision: D19548185

Pulled By: nikhilaravi

fbshipit-source-id: edc825d483a29f1a3311d46b4f349a6bc330c085

docs/conf.py

@@ -81,10 +81,10 @@ copyright = "2019, facebookresearch"
 author = "facebookresearch"
 
 # The short X.Y version
-version = "v0.1"
+version = "0.1"
 
 # The full version, including alpha/beta/rc tags
-release = "v0.1"
+release = version
 
 # -- General configuration ---------------------------------------------------
 

docs/requirements.txt

+docutils>=0.14
+Sphinx>=1.7
+recommonmark==0.4.0
+sphinx_rtd_theme
+sphinx_markdown_tables
+mock