[docs] Format config command options consistently

doc/03-cli.md

@@ -257,16 +257,16 @@ options.
 
 ### Options
 
-* **-g|--global:** Operate on the global config file located at
+* **--global (-g):** Operate on the global config file located at
 `$COMPOSER_HOME/config.json` by default.  Without this option, this command
 affects the local composer.json file or a file specified by `--file`.
-* **-e|--editor:** Open the local composer.json file using in a text editor as
+* **--editor (-e):** Open the local composer.json file using in a text editor as
 defined by the `EDITOR` env variable.  With the `--global` option, this opens
 the global config file.
 * **--unset:** Remove the configuration element named by `setting-key`.
-* **-l|--list:** Show the list of current config variables.  With the `--global`
+* **--list (-l):** Show the list of current config variables.  With the `--global`
  option this lists the global configuration only.
-* **-f|--file="...":** Operate on a specific file instead of composer.json. Note
+* **--file="..." (-f):** Operate on a specific file instead of composer.json. Note
  that this cannot be used in conjunction with the `--global` option.
 
 ### Modifying Repositories