chore: add markdown-table-prettify extension to extensions.json

Author: Rel1cx

.vscode/extensions.json

@@ -1,6 +1,7 @@
 {
   "recommendations": [
     "dprint.dprint",
-    "dbaeumer.vscode-eslint"
+    "dbaeumer.vscode-eslint",
+    "darkriszty.markdown-table-prettify"
   ]
-}
+}