Removed embedded colon in DOCUMENTATION of apt_repository: building manpages failed

apt_repository

@@ -44,8 +44,8 @@ options:
     choices: [ "present", "absent" ]
 notes:
    - This module requires C(apt-add-repository) be available on destination server. To ensure this package is available use the C(apt) module and install the C(python-software-properties) package before using this module.
-   - This module works on Ubuntu and unstable Debian only, see U(https://github.com/ansible/ansible/pull/1082).
-   - A bug in C(apt-add-repository) always adds C(deb) and C(deb-src) types for repositories (see the issue on Launchpad U(https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/987264)), if some repo don't have source (eg: MongoDB repo from 10gen) the system fails while updating repositories.
+   - This module works on Ubuntu and unstable Debian only, see *(https://github.com/ansible/ansible/pull/1082). 
+   - A bug in C(apt-add-repository) always adds C(deb) and C(deb-src) types for repositories (see the issue on Launchpad U(https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/987264)), if some repo don't have source (eg MongoDB repo from 10gen) the system fails while updating repositories.
 author: Matt Wright
 examples:
 - code: apt_repository repo=ppa://nginx/stable