Add: U-label to A-label conversion

Cheatsheet.txt

@@ -1,17 +1,25 @@
 Welcome to Cheatsheet.txt, licensed under CC-0. No attribution required.
 But it is writen by Diskette (diskette@dailitation.xyz)
 
-Information regarding the flags are in dkimpy repository.
+Information regarding the [] flags are in dkimpy repository.
 
 [__init__.py]
 Initialization file,
 
 class dkimMilter, a milter for dkim
 
+What are those
+self.fp localpart
+self.fdomain domain part
+self.iequals i still have no idea
+
+def header
+
+
 define check_dkim, I assume that this checks dkim, how?
 
 def sign_dkim
-
+d = dkim.DKIM(txt)
 
 [dnsplyug.py]
 File for interfacing with DNS