[VOL-1621] Initial documentation framework

Change-Id: Idb7f3e7b859ed3259021aace30a7053a684818e7
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..340b706
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,17 @@
+Sphinx~=1.8.5
+actdiag~=0.5.4
+blockdiag~=1.5.4
+livereload~=2.6.1
+nwdiag~=1.0.4
+recommonmark~=0.6.0
+rstcheck~=3.3.1
+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
+sphinxcontrib-openapi~=0.5.0
+# sphinx-autoapi~=1.2.1
+# sphinxcontrib-golangdomain