Update README for pipenv command name (#1343)

remove --> uninstall

README.md

@@ -245,9 +245,9 @@ can lead to compatibility issues.
 Also, you have to explicitly tell it to not update the locked packages when you
 install new ones. This should be the default.
 
-#### Remove command
+#### Uninstall command
 
-The `remove` command will only remove the package specified but not its dependencies
+The `uninstall` command will only remove the package specified but not its dependencies
 if they are no longer needed.
 
 You either have to use `sync` or `clean` to fix that.