Resources added for Content Security policy (#1177)

content/roadmaps/101-backend/content/111-web-security-knowledge/105-content-security-policy.md

@@ -1 +1,7 @@
-# Content security policy
+# Content Security Policy
+
+Content Security Policy is a computer security standard introduced to prevent cross-site scripting, clickjacking and other code injection attacks resulting from execution of malicious content in the trusted web page context.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink badgeText='Read' colorScheme="yellow" href='https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP'>MDN — Content Security Policy (CSP)</BadgeLink>
+<BadgeLink badgeText='Read' colorScheme="yellow" href='https://developers.google.com/web/fundamentals/security/csp'>Google Devs — Content Security Policy (CSP)</BadgeLink>