Chrony installation guide - Create SystemSeriesA09.md (#460)

* Create SystemSeriesA09.md

Created Chrony installation guide.

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+# A10 ❯ Chrony Installation Guide
+<small>ℹ️ This article is part of AlmaLinux [System Series](/series/).</small>
+<hr>
+| 💡 | Experience Level  | ⭐☆☆☆☆ |
+|--- | --------- | --------|
+| 📆 | <small>Last modified | 2024-02-02</small> |
+| 🔧 | <small>Tested by <br> ↳ version \| platform \| date </small>| NOT TESTED YET |
+
+Chrony Man page: https://chrony-project.org/
+
+## Install Chrony:
+```bash
+dnf install chrony -y
+```
+
+# Configure Chrony conf file:
+## Edit the /etc/chrony.conf file using a text editor like nano or vi. 
+Ensure the following content is set:
+```bash
+# chrony.conf
+# Use Google's NTP server
+server time.google.com iburst
+
+# Local clock as a fallback source
+server 127.127.1.0 iburst
+
+# Set the time zone
+rtcsync
+
+maxdistance 16.0
+
+# Driftfile
+driftfile /var/lib/chrony/drift
+
+# Allow larger adjustments to the system clock
+makestep 1.0 3
+
+# Leap seconds configuration
+leapsec tz right/UTC
+
+# Adjust the following line to allow systems in the XXX.XXX.XXX.XXX/XX subnet to access this client.
+# Ensure to modify the XXX.XXX.XXX.XXX/XX part based on your network configuration.
+allow XXX.XXX.XXX.XXX/XX
+
+# Logging
+log tracking measurements statistics
+logdir /var/log/chrony
+```
+For more details on configuring Chrony, you can refer to the Configuration Reference for the version of [Chrony Documentation](https://chrony-project.org/documentation.html) that matches the version you have installed.
+
+
+# Restart Chrony service:
+```bash
+systemctl restart chronyd
+```