Replace '_' in paths in werc's docs section with '-', and set up apropriate redirects to avoid broken links.

sites/werc.cat-v.org/docs/css-style.md

@@ -0,0 +1,18 @@
+Custom CSS Stylesheets
+=====================
+
+If you create a file under your site's dir at _werc/pub/style.css it will be included automatically after the standard werc stylesheet.
+
+You can copy pub/style/style.css and customize it, or you can take a simpler file and just change the main color theme.
+
+Here is an example of how to set the main werc colors:
+
+
+	body { background-color: #FFFFF7; }
+	.midHeader { background-color: #FFFFE9; }
+	#side-bar { background-color: #EFFFEF; }
+	#side-bar a { color: black; }
+	#side-bar a:hover {
+	  color: white!important;
+	  background-color: #428a42;
+	}