r: chanserv & nickserv & sasl

Quick redirects to relevant freenode pages.

* chanserv: freenode blog as it was apparently not documented elsewhere
  on freenode.net.
* nickserv: FAQ on user registration.
* sasl: the SASL page.

r/chanserv.md

@@ -0,0 +1,5 @@
+---
+redirect_to: https://blog.freenode.net/2008/04/registering-a-channel-on-freenode/
+permalink: /r/chanserv.html
+sitemap: false
+---

r/nickserv.md

@@ -0,0 +1,5 @@
+---
+redirect_to: https://freenode.net/faq.shtml#userregistration
+permalink: /r/nickserv.html
+sitemap: false
+---

r/sasl.md

@@ -0,0 +1,5 @@
+---
+redirect_to: https://freenode.net/sasl
+permalink: /r/sasl.html
+sitemap: false
+---