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

sites/werc.cat-v.org/docs/web-server-setup/nhttpd.md

@@ -0,0 +1,60 @@
+Nhttpd/Nostromo  Web Server Configuration for Werc
+==================================================
+
+Contributed by nsz, thanks!
+
+The last two sections are relevant: aliases (to make non-content site material,
+like css, available) and virtual hosts (the document root is set to `werc.rc`
+so it will handle every request).
+
+    # MAIN [MANDATORY]
+    
+    servername      main.host.com
+    serveradmin     admin[at]mail.com
+    serverroot      /var/nostromo
+    servermimes     conf/mimes
+    logpid          logs/nhttpd.pid
+    logaccess       logs/access_log
+    docroot         /var/nostromo/htdocs
+    docindex        index.html
+    
+    # SETUID [RECOMMENDED]
+    
+    user            nhttpd
+    
+    # BASIC AUTHENTICATION [OPTIONAL]
+    #...
+    
+    # SSL [OPTIONAL]
+    #...
+    
+    # CUSTOM RESPONSES [OPTIONAL]
+    #...
+    
+    # HOMEDIRS [OPTIONAL]
+    #...
+    
+    # ALIASES [OPTIONAL]
+    
+    /pub            /path/to/werc/pub
+    # The following line doesn't work because nhttpd doesn't support file aliases yet.
+    #/favicon.ico        /path/to/werc/pub/default_favicon.ico
+    
+    # VIRTUAL HOSTS [OPTIONAL]
+    
+    vhost1.com      /path/to/werc/bin/werc.rc
+    vhost2.com      /path/to/werc/bin/werc.rc
+    #...
+
+To use werc on `main.host.com` as well just set `docroot` to `/path/to/werc/bin/werc.rc`
+and set `docindex` to empty string.
+
+There was a bug in nhttpd <=1.9, it did not set `SERVER_NAME` properly (left it `main.host.com`).
+To solve this problem just add a
+
+    SERVER_NAME=$HTTP_HOST
+
+line somewhere at the top of `werc.rc`.
+
+
+