Server Install/Docker pages parity fixes as per feedback in EA docs

modules/ROOT/nav.adoc

@@ -212,7 +212,6 @@ include::third-party:partial$nav.adoc[]
   *** xref:install:install-oracle.adoc[Oracle Enterprise]
   *** xref:install:amazon-linux2-install.adoc[Amazon Linux 2]
   *** xref:install:non-root.adoc[Non-Root Install and Upgrade]
-  *** xref:install:rhel-multiple-instances.adoc[Install Multiple Instances]
  ** xref:install:install-package-windows.adoc[Install on Windows]
  ** xref:install:macos-install.adoc[Install on macOS]
  ** xref:install:testing.adoc[Verify the Installation]

modules/install/pages/getting-started-docker.adoc

@@ -14,7 +14,7 @@ For more traditional Docker deployments, use the following sections below:
 * <<section_msh_fbl_42b>>
 * <<section_deploy_multiple_clusters>>
 
-If you're simply looking for the official Couchbase Server Docker image, you can find it on https://hub.docker.com/_/couchbase/[Docker Hub^].
+For Couchbase Server image in Docker, see https://hub.docker.com/r/couchbase/server[couchbase/server].
 
 [#section_jvt_zvj_42b]
 == Deploy a Single-Node Cluster with Containers
@@ -50,7 +50,8 @@ For example:
 `-p 9091:8091` instructs the container to map the external machine port `9091` to the container application's port `8091`.
 ****
 
-After running the above command, a single instance (`db`) of the latest https://hub.docker.com/_/couchbase/[official Couchbase Server container image^] is downloaded and run on the host computer.
+After running the above command, a single instance (`db`) of the latest Couchbase Server image (see https://hub.docker.com/r/couchbase/server[couchbase/server]) is downloaded and run on the host computer.
+
 If a traditional installation of Couchbase Server is running locally on the host computer, the port mappings specified using the `-p` option may fail.
 Ensure that you stop any local instance of Couchbase Server before running this command. +
 {shutdown-instructions-link}
@@ -146,7 +147,8 @@ $ docker run -d --name db2 couchbase
 $ docker run -d --name db3 -p 8091-8096:8091-8096 -p 11210-11211:11210-11211 couchbase
 ----
 
-After running the above commands, three instances (`db1`, `db2`, `db3`) of the latest https://hub.docker.com/_/couchbase/[official Couchbase Server container image^] are downloaded and run on the host computer.
+After running the above commands, three instances (`db1`, `db2`, `db3`) of the latest Couchbase Server image (see https://hub.docker.com/r/couchbase/server[couchbase/server]) are downloaded and run on the host computer.
+
 If a traditional installation of Couchbase Server is running locally on the host computer, the port mappings specified using the `-p` option may fail.
 Ensure that you stop any local instance of Couchbase Server before running these commands. +
 {shutdown-instructions-link}
@@ -268,7 +270,8 @@ To set up Docker on each host computer, refer to Docker's https://www.docker.com
 $ docker run -d --name db -v ~/couchbase:/opt/couchbase/var --net=host couchbase
 ----
 
-After running the above command, a single instance (`db`) of the latest https://hub.docker.com/_/couchbase/[official Couchbase Server container image^] is downloaded and run on the host computer.
+After running the above command, a single instance (`db`) of the latest Couchbase Server image (see https://hub.docker.com/r/couchbase/server[couchbase/server]) is downloaded and run on the host computer.
+
 The [.cmd]`-v` option is recommended for better I/O performance and persists the data stored by Couchbase on the local host.
 The `--net=host` option provides better network performance and maps the host network stack to the container.
 ////
@@ -371,8 +374,7 @@ $ docker run -d --name db2 -p 9091-9096:8091-8096 -p 21210-21211:11210-11211 cou
 ----
 +
 After running the above commands,
-two instances (`db1` and `db2`) of the latest https://hub.docker.com/_/couchbase/[official Couchbase Server container image^] are downloaded
-and run on the host computer.
+two instances (`db1` and `db2`) of the latest Couchbase Server image (see https://hub.docker.com/r/couchbase/server[couchbase/server]) are downloaded and run on the host computer.
 If a traditional installation of Couchbase Server is running locally on the host computer,
 the port mappings specified using the `-p` option may fail.
 Ensure that you stop any local instance of Couchbase Server before running these commands. +

modules/install/pages/ubuntu-debian-install.adoc

@@ -79,7 +79,7 @@ Available releases are listed with their full `version-build` number:
 +
 [subs=+quotes]
 ----
-couchbase-server/xenial *6.0.0-1693-1* amd64
+couchbase-server/xenial *8.0.0-3777* amd64
 ----
 +
 . Specify a release to install it.
@@ -93,7 +93,7 @@ Using the example listing from the previous step, the resulting installation com
 +
 [subs=+quotes]
 ----
-sudo apt-get install couchbase-server=*6.0.0-1693-1*
+sudo apt-get install couchbase-server=*8.0.0-3777*
 ----
 --