Update README.md

README.md

@@ -16,15 +16,19 @@ First of all, you have to install Beamer, directly from source or
 using an already made package for your distro.  Then install the
 theme, on a Unix system just type in a terminal:
 
-`$ sudo cp -r themes /usr/share/texmf/tex/latex/beamer/`
-`$ sudo texhash`
+```bash
+$ sudo cp -r themes /usr/share/texmf/tex/latex/beamer/
+$ sudo texhash
+```
 
 ## Usage
 Now you are ready to use the theme, for documentation read the example
 files: chameleon.tex nouvelle.tex and freewilly.tex.  Compiling them
 you get some slides with documentation:
 
-`$ pdflatex chameleon.tex`
-`$ pdflatex nouvelle.tex`
-`$ pdflatex freewilly.tex`
+```bash
+$ pdflatex chameleon.tex
+$ pdflatex nouvelle.tex
+$ pdflatex freewilly.tex
+```