Fix the typo in README

ono-max · olleolleolle · commit a21742df633c · 2022-02-13T15:02:36.000+01:00
diff --git a/README.md b/README.md
@@ -417,7 +417,7 @@ Note that you can attach with `rdbg --attach` and continue REPL debugging.
 
 #### Chrome DevTool integration
 
-With `rdbg --open=chrome` command will shows the following message.
+With `rdbg --open=chrome` command will show the following message.
 
 ```
 $ rdbg target.rb --open=chrome
diff --git a/misc/README.md.erb b/misc/README.md.erb
@@ -417,7 +417,7 @@ Note that you can attach with `rdbg --attach` and continue REPL debugging.
 
 #### Chrome DevTool integration
 
-With `rdbg --open=chrome` command will shows the following message.
+With `rdbg --open=chrome` command will show the following message.
 
 ```
 $ rdbg target.rb --open=chrome
