readme: Google Inc. => LLC

The missing bit from #9.

Author: x1ddos

README.md

@@ -14,7 +14,7 @@ to any file that already has one.
 
     addlicense [flags] pattern [pattern ...]
 
-    -c copyright holder (default "Google Inc.")
+    -c copyright holder (default "Google LLC.")
     -l license type: apache, bsd, mit (default "apache")
     -y year (default 2016)