Add F31 cloud image to list.

static/markdown/anvil-images.md

@@ -5,6 +5,7 @@
 | CentOS 6.9	           |   `centos`           | `ssh -l centos@<ip address>`         | **HCC Standard OS**. The CentOS Linux distribution is a stable, predictable, manageable and reproducible platform derived from the sources of Red Hat Enterprise Linux (RHEL).|
 | Fedora 28 Cloud          |   `fedora`           | `ssh -l fedora <ipaddress>`          | Fedora is a Linux distribution developed by the community-supported Fedora Project and sponsored by the Red Hat company.|
 | Fedora 29 Cloud	   |   `fedora`           | `ssh -l fedora <ipaddress>`          | Fedora is a Linux distribution developed by the community-supported Fedora Project and sponsored by the Red Hat company.|
+| Fedora 31 Cloud          |   `fedora`           | `ssh -l fedora <ipaddress>`          | Fedora is a Linux distribution developed by the community-supported Fedora Project and sponsored by the Red Hat company.|
 | Fedora 28 RStudio (Xfce) |   `fedora`            |[X2Go instructions]({{< relref "connecting_to_linux_instances_using_x2go" >}}) | Fedora 28 with Rstudio and Xfce pre-installed.|
 | Fedora 31 RStudio (Xfce) |   `fedora`            |[X2Go instructions]({{< relref "connecting_to_linux_instances_using_x2go" >}}) | Fedora 31 with Rstudio and Xfce pre-installed.|
 | Fedora 28 Xfce           |   `fedora`            |[X2Go instructions]({{< relref "connecting_to_linux_instances_using_x2go" >}}) | Fedora 28 with the Xfce Desktop Environment pre-installed.|