Added simple usage example.

README.md

@@ -9,7 +9,19 @@ Copy `authorarchive.sty` in a directory that is searched by LaTeX
 LaTeX file.
 
 ## Usage
-
+A simple use for LNCS-formatted papers is as follows:
+```tex
+\usepackage[LNCS,
+   key=brucker-authorarchive-2016,
+   year=2016,
+   publication={Anonymous et al. (eds). Proceedings of the International
+       Conference on LaTeX-Hacks, LNCS~42. Some Publisher, 2016.}
+   startpage={42},
+   doi={00/00_00},
+   doiText={0/00\_00},
+   nocopyright
+ ]{authorarchive}
+```
 
 ## License
 If not otherwise stated, all sub-projects are dual-licensed under a