Update Sphinx

- Bump versions in requirements.txt

Remove sphinx docs which were duplicated everywhere, refer to ONF main
docs site which is more complete.

Replace logo with SVG version
- Was a WebP saved as .png which broke in some browsers.
- Shift logo to sidebar, as in all other docs sites.

Cleanup Makefile

Change how the dict.txt sorter works
- Only check the dict.txt for changes
- Give human-intelligible results

Add correct licensing info for fonts

Add code of conduct and link

Change-Id: Ie4334cfea826e348eca4c93ed62a3633b33ad87c
diff --git a/quickstart.rst b/quickstart.rst
index 43917d9..c1da2fa 100644
--- a/quickstart.rst
+++ b/quickstart.rst
@@ -5,8 +5,14 @@
 ===========
 
 .. note::
-    We have recently migrated the BMV2 version of ``fabric.p4`` to ``fabric-tna`` repository (and renamed it to ``fabric-v1model.p4``).
-    We plan to build a software-emulated, Docker-based environment using ``fabric-v1model.p4``
-    such that people can easily try out SD-Fabric without hardware equipments.
-    We also plan to use the same environment for SD-Fabric smoke test in the future.
-    Stay tuned.
+  We have recently migrated the BMV2 version of ``fabric.p4`` to ``fabric-tna``
+  repository (and renamed it to ``fabric-v1model.p4``).
+
+  We plan to build a software-emulated, Docker-based environment using
+  ``fabric-v1model.p4`` such that people can easily try out SD-Fabric without
+  hardware.
+
+  We also plan to use the same environment for SD-Fabric smoke test in the future.
+
+  Stay tuned.
+