Added basic documentation.

README.md

@@ -1,7 +1,47 @@
 # llncsconf
 LaTeX package extending Springer's llncs class.
 
+## Installation 
+Copy `llncsconf.sty` in a directory that is searched by LaTeX
+(e.g,. either your `texmf` tree or the local directory with your main
+LaTeX file.
+
+## Usage
+In a LaTeX file that uses Springer's `llncs` class, just add
+```
+    \usepackage{llncsconf}
+```
+to use the style. The package supports the following options:
+  * `crop`: crops the page (PDF) to the page size (152x235mm) used by
+    the LNCS proceedings books (and the official PDFs offered by
+    Springer),
+  * `rcsinfo`: adds RCS revision information to the first page of
+    the document,
+  * `svninfo`: adds subversion/svn revision information to the
+    first page of the document,
+  * `submitted`: adds a *submitted to ... please to no distribute* note
+    to the first page.
+  * `intended`: adds a *submitted to ... please to no distribute* note
+    to the first page.
+  * `llncs`: typesets a copy of Springer's copyright note. This should
+    satisfy Springer's requirements for self-archiving. 
+  * `proceedings`: typesets a note in which proceedings the paper was
+    published (similar to `llncs` without Springer's copyright note).
+
+Moreover, the package requires two commands to be executed:
+* `\conference{name of the conference}` which takes one argument,
+  i.e., the name of the conference. This is used when one of the
+  options `submitted` or `intended` is used for loading the package.
+* `\llncs{book editors and title}{start page}` which takes two
+  arguments: first the information about the book (e.g., editors,
+  title) and, second, the start page of the chapter (contribution).
+  
+
 ## License
 This project is dual-licensed under a 2-clause BSD-style license and/or 
 the LPPL version 1 or any later version. 
 
+
+\conference{International Conference on \LaTeX-Hacks}
+\llncs{Anonymous et al. (eds). \emph{Proceedings of the International
+       Conference on \LaTeX-Hacks}, LNCS~-42. Some Publisher, 2016.}{0042}