Corrected DML lock clarification

Author: djw-m

product_docs/docs/pgd/5/ddl.mdx

@@ -186,8 +186,8 @@ can be reached and are keeping up reasonably well with the current write rate.
 If such DDL commands must be performed while a node is down, first remove the
 down node from the configuration.
 
-A global DML lock is granted when *ALL* the eligible nodes, data and witness, agree to grant it.
-Subscriber-only nodes are not eligible to participate.
+A global DML lock is granted when *ALL* the eligible data nodes agree to grant it.
+Witness and subscriber-only nodes are not eligible to participate.
 
 
 If a DDL statement isn't replicated, no global locks are acquired.