[emacs] Add snippets for latex mode.

.emacs.d/snippets/latex-mode/desc.yasnippet

@@ -0,0 +1,9 @@
+# -*- mode: snippet -*-
+# contributor : Mads D. Kristensen <madsdk@gmail.com>
+# key : desc
+# group: environments
+# name : \begin{description} ... \end{description}
+# --
+\begin{description}
+\item[${1:label}] $0
+\end{description}