[DOCS] Fixes typo in keystore command

docs/reference/commands/keystore.asciidoc

@@ -48,7 +48,7 @@ for the value of the setting.
 
 `list`:: Lists the settings in the keystore.
 
-`remove <setting>:: Removes a setting from the keystore.
+`remove <setting>`:: Removes a setting from the keystore.
 
 `-s, --silent`:: Shows minimal output.