Update instructions for myself.

apt-publisher/README

@@ -21,10 +21,28 @@ Usage after all this:
 
     # install key
     sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 5CE16B7B
-    
+
     # install repo
     sudo add-apt-repository "deb https://cppse.nl/repo/ $(lsb_release -cs) main"
-    
+
     # enjoy
     sudo apt-get install whatever
 
+
+--- adding new distro.
+
+we need to edit the secret file.
+
+FIND IT:
+
+find ./ -name '*secret.tar.gz'
+
+untar into a temp dir..
+
+1) open conf/distributions
+add a block for the new thing, e.g., focal or jammy.
+
+2) recreate tar with same file.
+
+that should do it.
+