initialize file, add some notes

CMI/README.md

@@ -0,0 +1,8 @@
+# CMI Plugin Documentation
+
+## Will update personal CMI documentation here
+
+Notes:
+- I was looking at perms and saw admins have access to cmi.interactivesign.*
+- the regex is wrong on default. config.yml > InteractiveSigns >   SignRegex: (\[ic:([a-zA-Z0-9-]+)\]) # was missing dash after 9
+  * < ^ this is new updated line in case goes bad again, it was able to find the ic name i was using ^>