docs(query-generator): typo (#10277)

lib/dialects/abstract/query-generator.js

@@ -1135,7 +1135,7 @@ class QueryGenerator {
     attributes.main = this.escapeAttributes(attributes.main, options, mainTable.as);
     attributes.main = attributes.main || (options.include ? [`${mainTable.as}.*`] : ['*']);
 
-    // If subquery, we ad the mainAttributes to the subQuery and set the mainAttributes to select * from subquery
+    // If subquery, we add the mainAttributes to the subQuery and set the mainAttributes to select * from subquery
     if (subQuery || options.groupedLimit) {
       // We need primary keys
       attributes.subQuery = attributes.main;