Update installation instructions in the README

Signed-off-by: David Mulder <dmulder@samba.org>

Author: dmulder

README.md

@@ -25,29 +25,44 @@ donations to the Samba Team.
 
 ## Installing
 
-Himmelblau is currently only being built on openSUSE. Packaging contributions are welcome!
+Himmelblau is now available for multiple Linux distributions, including openSUSE, SUSE Linux Enterprise (SLE), Fedora, Ubuntu, Debian, and Red Hat Enterprise Linux (RHEL). Packages for NixOS are in progress. Visit the [Himmelblau Downloads Page](https://himmelblau-idm.org/downloads.html) to fetch the appropriate packages for your distribution.
 
-On openSUSE Tumbleweed, refresh the repos and install himmelblau:
+### openSUSE Tumbleweed
+For openSUSE Tumbleweed, refresh the repositories and install Himmelblau:
 
 ```shell
-sudo zypper ref && sudo zypper in himmelblau nss-himmelblau pam-himmelblau
+sudo zypper ref && sudo zypper in himmelblau nss-himmelblau pam-himmelblau himmelblau-sso
 ```
 
-On openSUSE Leap and SUSE Linux Enterprise, first add the experimental repo:
+### openSUSE Leap and SUSE Linux Enterprise
+Add the appropriate repository for your version:
 
 ```shell
 # For Leap 15.6 or SUSE Linux Enterprise 15 SP6:
 sudo zypper ar https://download.opensuse.org/repositories/network:/idm/15.6/network:idm.repo
+
 # For Leap 15.5 or SUSE Linux Enterprise 15 SP5:
 sudo zypper ar https://download.opensuse.org/repositories/network:/idm/15.5/network:idm.repo
-# For Leap 15.4 or SUSE Linux Enterprise 15 SP4:
-sudo zypper ar https://download.opensuse.org/repositories/network:/idm/15.4/network:idm.repo
 ```
 
-Then refresh the repos and install himmelblau:
+Then refresh and install:
+
+```shell
+sudo zypper ref && sudo zypper in himmelblau nss-himmelblau pam-himmelblau himmelblau-sso
+```
+
+### Fedora and RHEL (including Rocky Linux)
+Download the RPMs from the [Downloads Page](https://himmelblau-idm.org/downloads.html) and install:
+
+```shell
+sudo dnf install ./himmelblau-<version>.rpm ./himmelblau-sshd-config-<version>.rpm ./himmelblau-sso-<version>.rpm ./nss-himmelblau-<version>.rpm ./pam-himmelblau-<version>.rpm
+```
+
+### Debian and Ubuntu
+Download the DEB packages and install:
 
 ```shell
-sudo zypper ref && sudo zypper in himmelblau nss-himmelblau pam-himmelblau
+sudo apt install ./himmelblau_<version>.deb ./himmelblau-sshd-config_<version>.deb ./himmelblau-sso_<version>.deb ./nss-himmelblau_<version>.deb ./pam-himmelblau_<version>.deb
 ```
 
 ## Demos