doc: Add basic Sphinx configuration and Makefile
Adding the same type of Sphinx config that is used for the main
TF-A repo. Contains the config itself, a Makefile to build the
docs directly under the /docs directory (not tied to top-level
Makefile by design), an index page and the TF.org logo as used
in TF-A.
Change-Id: Ifd5c83533fbad457b448a52f42a2f12303887f4a
Signed-off-by: Paul Beesley <paul.beesley@arm.com>
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000..358ed0e
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1,3 @@
+sphinx>=2.0.0
+sphinx-rtd-theme>=0.4.3
+sphinxcontrib-plantuml>=0.15