Bugfix for README

[ci skip]

Author: tersmitten

README.md

@@ -10,7 +10,7 @@ None
 
 #### Variables
 
- * `postfix_install` [default: `[postfix, mailutils, libsasl2-2, sasl2-bin, libsasl2-modules`]]: Packages to install
+ * `postfix_install` [default: `[postfix, mailutils, libsasl2-2, sasl2-bin, libsasl2-modules]`]: Packages to install
  * `postfix_hostname` [default: `{{ ansible_fqdn }}`]: Host name, used for `myhostname` and in `mydestination`
  * `postfix_mailname` [default: `{{ ansible_fqdn }}`]: Mail name (in `/etc/mailname`), used for `myorigin`
  * `postfix_aliases` [default: `[]`]: Aliases to ensure present in `/etc/aliases`