MultiMarkdown has a special format for footnotes that should represent glossary terms. This doesn’t make much difference in XHTML (because there is no such thing as a glossary in XHTML), but can be used to generate a glossary within LaTeX documents.

For example, let’s have an entry for glossary.[1] And what about ampersands?[2]

Since we want the ampersand entry to be sorted with the a’s, and not with symbols, we put in the optional sort key ampersand to control sorting.

[^glossary]: glossary: Glossary 
    A section at the end ...

[^amp]: glossary: & (ampersand)
    A punctuation mark ...