Adding docs about latex citations.

docs/source/interactive/nbconvert.rst

@@ -125,6 +125,21 b' and using the command::'
 
 .. _notebook_format:
 
+LaTeX citations
+---------------
+
+``nbconvert`` now has support for LaTeX citations. With this capability you
+can:
+
+* Manage citations using BibTeX.
+* Cite those citations in Markdown cells using HTML data attributes.
+* Have ``nbconvert`` generate proper LaTeX citations and run BibTeX.
+
+For an example of how this works, please see the citations example in
+the nbconvert-examples_ repository.
+
+.. _nbconvert-examples: https://github.com/ipython/nbconvert-examples
+
 Notebook JSON file format
 -------------------------