Add the readme

README.md

+Beamer (LaTeX) template really closed to the official pptx Pasteur model.
+
+You can set the language using the first line, either english or french:
+\usepackage[english]{languagechooser}
+or
+\usepackage[french]{languagechooser}
+
+PasTeX iz in da pl4ce!
\ No newline at end of file