Update README.md

cloudwebrtc · web-flow · commit c8425f781592 · 2021-09-29T06:02:28.000+08:00
diff --git a/tools/README.md b/tools/README.md
@@ -1,6 +1,6 @@
 # CallKeep test tool
 
-This tool is used to demonstrate the basic push process for verifying callkeep. The tool is written in golang.
+This tool is used to demonstrate the basic push process for verifying callkeep. written in golang.
 
 prepare to run:
 
