Update codeit-autocomplete.js

Author: benhatsor

lib/plugins/codeit-autocomplete.js

@@ -705,7 +705,8 @@ acp.utils.getCaretPos = (cursor, query) => {
   let container = range.startContainer;
   let offset = range.startOffset - query.length;
 
-  // if offset is negative, go back a node
+  // if offset is negative (start of query is in previous node),
+  // go to previous node
   if (offset < 0) {
 
     container = container.previousSibling;