PXC-4639-v2 [DOCS] - Add procedure to download individual packages (#220)

new file:   docs/download-instructions.md
	modified:   mkdocs-base.yml

Author: alina-derkach-oaza

docs/download-instructions.md

@@ -0,0 +1,15 @@
+# Percona Software Download Instructions
+
+Do the following steps to select the software, the software version, and download the packages:
+
+1. Go to [Percona Software Downloads](https://www.percona.com/downloads).
+2. Locate Percona XtraDB Cluster.
+3. Select the required product in `Select Product`, for example, Percona XtraDB Cluster 8.4.
+4. Select your distribution version in the `Select Product Version` dropdown, for example, `Percona-XtraDB-Cluster-8.4.3`.
+5. Select your platform in the `Select Platform` dropdown, for example, `Ubuntu 24.04 (Noble Numbat)`.
+
+The `Package Download Options` may include both `AMD64` and `ARM64` packages. Select the correct CPU architecture for your system.
+
+You can download specific packages one by one or download all packages using the `DOWNLOAD ALL PACKAGES` button. The easiest method is to download all packages.
+
+The packages are downloaded to the local computer.

mkdocs-base.yml

@@ -172,6 +172,7 @@ nav:
       - get-started-cluster.md
   - Get started:
       - install-index.md
+      - download-instructions.md
       - apt.md 
       - yum.md 
       - tarball.md