fixup! fixup! Fix ~155 standard-track exceptions

Author: caugner

css/properties/place-content.json

@@ -38,9 +38,7 @@
         "flex_context": {
           "__compat": {
             "description": "Supported in Flex Layout",
-            "spec_url": [
-              "https://drafts.csswg.org/css-align/#place-content:~:text=Flex%20Items,-%3A"
-            ],
+            "spec_url": "https://drafts.csswg.org/css-align/#place-content:~:text=Flex%20Items,-%3A",
             "tags": [
               "web-features:flexbox"
             ],
@@ -76,9 +74,7 @@
         "grid_context": {
           "__compat": {
             "description": "Supported in Grid Layout",
-            "spec_url": [
-              "https://drafts.csswg.org/css-align/#place-content:~:text=Grid%20Items,-%3A"
-            ],
+            "spec_url": "https://drafts.csswg.org/css-align/#place-content:~:text=Grid%20Items,-%3A",
             "tags": [
               "web-features:grid"
             ],