DOC: Update Jetstream allocation link

Author: zonca

docs/install/jetstream.md

@@ -11,7 +11,7 @@ users and a user environment with packages you want installed running on
 ## Prerequisites
 
 1. A Jetstream account with an XSEDE allocation; for more information,
-   see the [Jetstream Allocations help page](http://wiki.jetstream-cloud.org/Jetstream+Allocations).
+   see the [Jetstream Allocations help page](https://jetstream-cloud.org/allocations/).
 
 ## Step 1: Installing The Littlest JupyterHub