Add caching server docs

content/roadmaps/102-devops/content/104-setting-up-x/101-caching-server.md

@@ -1 +1,8 @@
-# Caching server
+# Caching server
+
+A cache server is a **dedicated network server** or service acting as a server that saves Web pages or other Internet content locally. By placing previously requested information in temporary storage, or cache, a cache server both speeds up access to data and reduces demand on an enterprise's bandwidth.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.cloudflare.com/en-gb/learning/cdn/what-is-caching/'>What is Caching?</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://networkencyclopedia.com/cache-server/'>What is Cache Server?</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://wp-rocket.me/blog/different-types-of-caching/'>Site Cache vs Browser Cache vs Server Cache</BadgeLink>