README.md in zonesync-0.6.1 vs README.md in zonesync-0.7.0

- old
+ new
@@ -46,10 +46,13 @@
 www           CNAME example.com.
 wwwtest       CNAME www
 mail          A     192.0.2.3
 mail2         A     192.0.2.4
 mail3         A     192.0.2.5
+ignore        A     192.0.2.6 ; zonesync: ignore
 ```
+
+Note that records with a comment containing "zonesync: ignore" will not be touched during the sync. I'm considering inverting this from a blacklist to a whitelist in a future version, to avoid stomping on collaborators' records.
 
 ### DNS Host
 
 We need to tell `zonesync` about our DNS host by building a small YAML file. The structure of this file will depend on your DNS host, so here are some examples:
 