Add basic authentication content (#2853)

* Intro to Basic Authentication added

* Update content/roadmaps/101-backend/content/109-apis/106-authentication/102-basic-authentication.md

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/101-backend/content/109-apis/106-authentication/102-basic-authentication.md

@@ -1 +1,8 @@
-# Basic authentication
+# Basic authentication
+
+Given the name "Basic Authentication", you should not confuse Basic Authentication with the standard username and password authentication. Basic authentication is a part of the HTTP specification, and the details can be [found in the RFC7617](https://www.rfc-editor.org/rfc/rfc7617.html).
+
+Because it is a part of the HTTP specifications, all the browsers have native support for "HTTP Basic Authentication".
+
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://roadmap.sh/guides/http-basic-authentication'>HTTP Basic Authentication</BadgeLink>
+<BadgeLink colorScheme='purple' badgeText='Watch' href='https://www.youtube.com/watch?v=mwccHwUn7Gc'>Illustrated HTTP Basic Authentication</BadgeLink>