Create Mirrors page and link from Contributing and ToC

QubesOS/qubes-issues#3069

about/download-mirrors.md

@@ -0,0 +1,32 @@
+---
+layout: sidebar
+title: Download Mirrors
+permalink: /downloads/mirrors/
+---
+
+Qubes Download Mirrors
+======================
+
+List of Download Mirrors
+------------------------
+
+The full list of known Qubes download mirrors is available [here][mirror-list].
+
+Instructions for Mirror Operators
+---------------------------------
+
+If you are interested in offering a mirror for Qubes downloads, thank you!
+We greatly appreciate your offer, and we hope these brief instructions are
+helpful in streamlining the process.
+
+ * We are happy to provide rsync or HTTP master.
+ * Our preferred frequency is **once every 24 hours**, but anything up to once
+   every 6-8 hours is fine.
+ * For technical accommodations, please contact [Wojtek] or [Marek].
+ * For website updates and fixes, please contact [Andrew].
+
+
+[mirror-list]: /downloads/#mirrors
+[Wojtek]: /team/#wojtek-porczyk
+[Marek]: /team/#marek-marczykowski-górecki
+[Andrew]: /team/#andrew-david-wong

basics_user/contributing.md

@@ -25,6 +25,7 @@ ways in which you can help:
 * [Write and edit the documentation]
 * [Donate] to the project
 * If you represent an organization, become a [Qubes partner]
+* Add a [Qubes download mirror]
 * Answer questions on the [mailing lists]
 * Engage with us on social media:
   * Follow us on [Twitter]

doc.md

@@ -46,6 +46,7 @@ Choosing Your Hardware
 Installing & Upgrading Qubes
 ----------------------------
  * [Qubes Downloads](/downloads/)
+ * [Qubes Download Mirrors](/downloads/mirrors/)
  * [Installation Guide](/doc/installation-guide/)
  * [Upgrade Guides](/doc/upgrade/)
  * [Why and How to Verify Signatures](/security/verifying-signatures/)