Adding Code of Conduct (format fixed)

Exclude CoC from Sphinx

Change-Id: I4edf2b1907a3484ea89ee93e0e89beda135b2804
diff --git a/conf.py b/conf.py
index 9ea3196..ce7ea51 100644
--- a/conf.py
+++ b/conf.py
@@ -108,6 +108,8 @@
         'repos',
         'requirements.txt',
         'bbsim/README.md',
+        'CODE_OF_CONDUCT.md',
+        '*/CODE_OF_CONDUCT.md',
 ]
 
 # The name of the Pygments (syntax highlighting) style to use.