Add spec URL to name validation

Author: hamishwillee

api/CustomElementRegistry.json

@@ -212,6 +212,7 @@
         "relax_dom_valid_names": {
           "__compat": {
             "description": "Allow more characters in custom element names",
+            "spec_url": "https://dom.spec.whatwg.org/#namespaces",
             "support": {
               "chrome": {
                 "version_added": "143"
@@ -422,6 +423,7 @@
         "relax_dom_valid_names": {
           "__compat": {
             "description": "Allow more characters in custom element names",
+            "spec_url": "https://dom.spec.whatwg.org/#namespaces",
             "support": {
               "chrome": {
                 "version_added": "143"

api/Document.json

@@ -1810,6 +1810,7 @@
         "relax_dom_valid_names": {
           "__compat": {
             "description": "Allow more characters in DOM names and namespaces",
+            "spec_url": "https://dom.spec.whatwg.org/#namespaces",
             "support": {
               "chrome": {
                 "version_added": "143"
@@ -1885,6 +1886,7 @@
         "relax_dom_valid_names": {
           "__compat": {
             "description": "Allow more characters in DOM names and namespaces",
+            "spec_url": "https://dom.spec.whatwg.org/#namespaces",
             "support": {
               "chrome": {
                 "version_added": "143"
@@ -2131,6 +2133,7 @@
         "relax_dom_valid_names": {
           "__compat": {
             "description": "Allow more characters in DOM names and namespaces",
+            "spec_url": "https://dom.spec.whatwg.org/#namespaces",
             "support": {
               "chrome": {
                 "version_added": "143"
@@ -2245,6 +2248,7 @@
         "relax_dom_valid_names": {
           "__compat": {
             "description": "Allow more characters in DOM names and namespaces",
+            "spec_url": "https://dom.spec.whatwg.org/#namespaces",
             "support": {
               "chrome": {
                 "version_added": "143"

api/Element.json

@@ -10166,6 +10166,7 @@
         "relax_dom_valid_names": {
           "__compat": {
             "description": "Allow more characters in DOM names and namespaces",
+            "spec_url": "https://dom.spec.whatwg.org/#namespaces",
             "support": {
               "chrome": {
                 "version_added": "143"
@@ -10287,6 +10288,7 @@
         "relax_dom_valid_names": {
           "__compat": {
             "description": "Allow more characters in DOM names and namespaces",
+            "spec_url": "https://dom.spec.whatwg.org/#namespaces",
             "support": {
               "chrome": {
                 "version_added": "143"
@@ -10809,6 +10811,7 @@
         "relax_dom_valid_names": {
           "__compat": {
             "description": "Allow more characters in DOM names and namespaces",
+            "spec_url": "https://dom.spec.whatwg.org/#namespaces",
             "support": {
               "chrome": {
                 "version_added": "143"