cosmetic: fix several typos found by codespell
Change-Id: Id1f6766572fd313463201e6d03964965f227db25
diff --git a/COPYING b/COPYING
index 879341e..b1f53c4 100644
--- a/COPYING
+++ b/COPYING
@@ -666,7 +666,7 @@
=========================================================================
This marks the end of the AGPLv3 text. The following text is appended to the
-same file for convience but constituting a distinct document, not part of the
+same file for convenience but constituting a distinct document, not part of the
actual AGPL text and not part of an attempt to create a deriviative work based
on the AGPLv3 text.