Fix issue #34

Signed-off-by: Matthieu Le Corre <matthieu.lecorre@univ-nantes.fr>

src/main.js

@@ -382,7 +382,7 @@ OCA.ReadmeMD.App = {
 			import('markdown-it').then(MDconverter => {
 			var converter = MDconverter.default({
 							replaceLink: function(link,env){
-								if ( link.startsWith('http://') ||  link.startsWith('https://') || link.startsWith(OC.getRootPath()+'/index.php/core/preview') ){ 
+								if ( link.startsWith('mailto:') ||( link.startsWith('http://') ||  link.startsWith('https://') || link.startsWith(OC.getRootPath()+'/index.php/core/preview') ){ 
 										return link ; 
 									} else {
 										if (self.mode == 'public') {