This template creates a link to a section of an article. It can be used both in an article and its corresponding talk-page. It also can be used with two parameters to link to a different article. The only visible text is the section's name.
It has three advantages:
It is not necessary to type the section name twice.
In an article's talk page it is not necessary to type the article name.
A given lower case section name will display as such, but will automatically link to the uppercase section.
Because links to anchors are case-sensitive (at least when using Mozilla), and because per our style guide section headlines should begin with an uppercase letter, this template automatically capitalizes the first letter of the link. Therefore, it is not possible to link to a section with a lower case title with this template, which can be a problem when linking to talk page discussions.
