Add CentOS resources

CentOS documentation

content/roadmaps/102-devops/content/102-managing-servers/100-operating-system/101-centos.md

@@ -1 +1,7 @@
-# Centos
+# CentOS
+
+CentOS (short for Community Enterprise Operating System) is a community driven, free and open-source distribution that is functionally compatible with Red Hat Enterprise Linux (RHEL). The CentOS distribution was discontinued in December 2021, however it has now been succeeded by [Rocky Linux](https://rockylinux.org/) and [AlmaLinux](https://almalinux.org/)
+
+<BadgeLink badgeText='Official Website' colorScheme='blue' href='https://www.centos.org/'>CentOS Project Website</BadgeLink>
+<BadgeLink badgeText='Official Documentation' colorScheme='blue' href='https://wiki.centos.org/Documentation'>CentOS Documentation</BadgeLink>
+<BadgeLink badgeText='How To Guides' colorScheme='blue' href='https://wiki.centos.org/HowTos'>CentOS How To Guides</BadgeLink>