chore: fix mdn urls

Author: mdn-bot

api/IntersectionObserver.json

@@ -113,6 +113,7 @@
       },
       "delay": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/IntersectionObserver/delay",
           "spec_url": "https://w3c.github.io/IntersectionObserver/#dom-intersectionobserver-delay",
           "tags": [
             "web-features:intersection-observer"
@@ -297,6 +298,7 @@
       },
       "scrollMargin": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/IntersectionObserver/scrollMargin",
           "tags": [
             "web-features:intersection-observer"
           ],
@@ -405,6 +407,7 @@
       },
       "trackVisibility": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/IntersectionObserver/trackVisibility",
           "spec_url": "https://w3c.github.io/IntersectionObserver/#dom-intersectionobserver-trackvisibility",
           "tags": [
             "web-features:intersection-observer"