fix: fixed the deprecated warning for onBrokenMarkdownLinks and replace with v4 based onBrokenMarkdownLinks

Signed-off-by: Saket Maurya <mauryapriyadarshi2004@gmail.com>

Author: SaketV8

docusaurus.config.js

@@ -13,7 +13,12 @@ module.exports = {
   url: "https://keploy.io",
   baseUrl: "/docs/",
   onBrokenLinks: "throw",
-  onBrokenMarkdownLinks: "warn",
+  markdown: {
+    hooks: {
+      onBrokenMarkdownLinks: 'warn',
+    },
+  },
+  // onBrokenMarkdownLinks: "warn",
   trailingSlash: true,
   favicon: "img/favicon.png",
   organizationName: "keploy", // Usually your GitHub org/user name.