spelling correction "Certificate of Incorporation"

reported by Bracket Master (slack dm)

Signed-off-by: Toshaan Bharvani <toshaan@vantosh.com>

config/_default/menus.toml

@@ -115,7 +115,7 @@
 
 ### governance
 [[governance]]
-	name = "Certificate of Incorperation"
+	name = "Certificate of Incorporation"
 	url = "https://files.openpower.foundation/s/xAkXWTxTxRqTeaM"
 	pre = "far fa-file-pdf"
 	#post = "fas fa-external-link-alt"