Adds OMR 126 updates

Author: Steven Smith

modules/mirror-registry-flags.adoc

@@ -13,6 +13,7 @@ The following flags are available for the _mirror registry for Red Hat OpenShift
 | `--autoApprove` | A boolean value that disables interactive prompts. If set to `true`, the `quayRoot` directory is automatically deleted when uninstalling the mirror registry. Defaults to `false` if left unspecified.
 | `--initPassword` | The password of the init user created during Quay installation. Must be at least eight characters and contain no whitespace.
 |`--initUser string` | Shows the username of the initial user. Defaults to `init` if left unspecified.
+|`--no-color`, `-c` | Allows users to disable color sequences and propagate that to Ansible when running install, uninstall, and upgrade commands.
 | `--quayHostname` | The fully-qualified domain name of the mirror registry that clients will use to contact the registry. Equivalent to `SERVER_HOSTNAME` in the Quay `config.yaml`. Must resolve by DNS. Defaults to `<targetHostname>:8443` if left unspecified. ^[1]^
 | `--quayRoot`, `-r` | The directory where container image layer and configuration data is saved, including `rootCA.key`, `rootCA.pem`, and `rootCA.srl` certificates. Requires about 12 GB for {product-title} 4.10 Release images, or about 358 GB for {product-title} 4.10 Release images and {product-title} 4.10 Red Hat Operator images. Defaults to `/etc/quay-install` if left unspecified.
 | `--ssh-key`, `-k` | The path of your SSH identity key. Defaults to `~/.ssh/quay_installer` if left unspecified.

modules/mirror-registry-release-notes.adoc

@@ -11,6 +11,19 @@ These release notes track the development of the _mirror registry for Red Hat Op
 
 For an overview of the _mirror registry for Red Hat OpenShift_, see xref:../../installing/disconnected_install/installing-mirroring-creating-registry.html#mirror-registry-flags_installing-mirroring-creating-registry[Creating a mirror registry with mirror registry for Red Hat OpenShift].
 
+[id="mirror-registry-for-openshift-1-2-6"]
+== Mirror registry for Red Hat OpenShift 1.2.6
+
+_Mirror registry for Red Hat OpenShift_ is now available with Red Hat Quay 3.7.7.
+
+The following advisory is available for the _mirror registry for Red Hat OpenShift_:
+
+* link:https://access.redhat.com/errata/RHBA-2022:6278[RHBA-2022:6278 - mirror registry for Red Hat OpenShift 1.2.6]
+
+=== New features 
+
+A new feature flag, `--no-color` (`-c`) has been added. This feature flag allows users to disable color sequences and propagate that to Ansible when running install, uninstall, and upgrade commands. 
+
 [id="mirror-registry-for-openshift-1-2-5"]
 == Mirror registry for Red Hat OpenShift 1.2.5