Update doc

matterbridge.toml.sample

@@ -200,7 +200,7 @@ IconURL="http://youricon.png"
 #OPTIONAL
 useAPI=false
 
-#The mattermost hostname. 
+#The mattermost hostname. (do not prefix it with http or https)
 #REQUIRED (when useAPI=true)
 Server="yourmattermostserver.domain" 
 

matterbridge.toml.simple

@@ -6,6 +6,7 @@
 [mattermost]
     [mattermost.work]
     useAPI=true
+    #do not prefix it wit http:// or https://
     Server="yourmattermostserver.domain" 
     Team="yourteam"
     Login="yourlogin"