Update knowledge-base.md

diberry · web-flow · commit c3cefd64f424 · 2020-05-26T15:01:30.000-07:00
diff --git a/articles/cognitive-services/QnAMaker/Concepts/knowledge-base.md b/articles/cognitive-services/QnAMaker/Concepts/knowledge-base.md
@@ -7,7 +7,7 @@ ms.date: 03/16/2020
 
 # Importing from data sources
 
-A knowledge base consists of question and answer pairss brought in by public URLs and files.
+A knowledge base consists of question and answer pairs brought in by public URLs and files.
 
 ## Data source locations
 
