Initial Sphinx-based documentation templates and infra
Change-Id: I180ad109b8a885df6fd8911729289cee5c9bd99f
diff --git a/requirements.txt b/requirements.txt
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+Sphinx~=1.8.5
+actdiag~=0.5.4
+blockdiag~=1.5.4
+doc8~=0.8.0
+livereload~=2.6.1
+nwdiag~=1.0.4
+recommonmark~=0.6.0
+seqdiag~=0.9.6
+sphinx-reload~=0.2.0
+sphinx-rtd-theme~=0.4.3
+sphinxcontrib-actdiag~=0.8.5
+sphinxcontrib-blockdiag~=1.5.5
+sphinxcontrib-nwdiag~=0.9.5
+sphinxcontrib-seqdiag~=0.8.5