engine/install: add RHEL 10 support

Add support for RHEL 10 to Docker Engine installation documentation and
update the repository setup instructions to use version-specific
repository URLs for older RHEL versions.

Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>

Author: vvoland

content/manuals/engine/install/rhel.md

@@ -31,6 +31,7 @@ RHEL versions:
 
 - RHEL 8
 - RHEL 9
+- RHEL 10
 
 ### Uninstall old versions
 
@@ -90,9 +91,37 @@ your DNF repositories) and set up the repository.
 
 ```console
 $ sudo dnf -y install dnf-plugins-core
+```
+
+Add the Docker repository. The repository URL depends on your RHEL version:
+
+{{< tabs >}}
+{{< tab name="RHEL 10" >}}
+
+For RHEL 10 and later:
+
+```console
 $ sudo dnf config-manager --add-repo {{% param "download-url-base" %}}/docker-ce.repo
 ```
 
+{{< /tab >}}
+{{< tab name="RHEL 8 or 9" >}}
+
+For RHEL 8 or 9, use 
+
+```console
+$ sudo dnf config-manager --add-repo {{% param "download-url-base" %}}/<RHEL_VERSION>/docker-ce.repo
+```
+
+For example, for RHEL 9:
+
+```console
+$ sudo dnf config-manager --add-repo {{% param "download-url-base" %}}/9/docker-ce.repo
+```
+
+{{< /tab >}}
+{{< /tabs >}}
+
 #### Install Docker Engine
 
 1. Install the Docker packages.