Update README.md

ZCG-coder · web-flow · commit 1f34da09c9a8 · 2020-12-17T08:11:16.000+08:00
diff --git a/README.md b/README.md
@@ -5,6 +5,7 @@ F1 : new
 F2 : delete  
 F3 : search  
 F4 : show properties  
+Enter : ok  
 ## Issues  
 The most common issue is missing the rDat.txt file.  
 You can fix it easily by running the attached files.  
