Remove the semicolons from the JSON examples (#37129)

I was working through the "Supports" documentation and realised there are some semicolons in the JSON examples. It's best if we remove these so if people are copy and pasting anything into their JSON files it'll work as expected and they don't need to remove the semicolons manually to get webpack to build assets successfully.

docs/reference-guides/block-api/block-supports.md

@@ -14,7 +14,7 @@ Anchors let you link directly to a specific block on a page. This property adds
 ```js
 // Declare support for anchor links.
 supports: {
-	anchor: true;
+	anchor: true
 }
 ```
 
@@ -30,14 +30,14 @@ supports: {
 	// Declare support for block's alignment.
 	// This adds support for all the options:
 	// left, center, right, wide, and full.
-	align: true;
+	align: true
 }
 ```
 
 ```js
 supports: {
 	// Declare support for specific alignment options.
-	align: [ 'left', 'right', 'full' ];
+	align: [ 'left', 'right', 'full' ]
 }
 ```
 
@@ -62,7 +62,7 @@ This property allows to enable [wide alignment](/docs/how-to-guides/themes/theme
 ```js
 supports: {
 	// Remove the support for wide alignment.
-	alignWide: false;
+	alignWide: false
 }
 ```
 
@@ -76,7 +76,7 @@ By default, the class `.wp-block-your-block-name` is added to the root element o
 ```js
 supports: {
 	// Remove the support for the generated className.
-	className: false;
+	className: false
 }
 ```
 
@@ -99,7 +99,7 @@ Note that the `background` and `text` keys have a default value of `true`, so if
 supports: {
 	color: {
 		// This also enables text and background UI controls.
-		gradients: true; // Enable gradients UI control.
+		gradients: true // Enable gradients UI control.
 	}
 }
 ```
@@ -406,7 +406,7 @@ This property adds a field to define a custom className for the block's wrapper.
 ```js
 supports: {
 	// Remove the support for the custom className.
-	customClassName: false;
+	customClassName: false
 }
 ```
 
@@ -420,7 +420,7 @@ When the style picker is shown, the user can set a default style for a block typ
 ```js
 supports: {
 	// Remove the Default Style picker.
-	defaultStylePicker: false;
+	defaultStylePicker: false
 }
 ```
 
@@ -434,7 +434,7 @@ By default, a block's markup can be edited individually. To disable this behavio
 ```js
 supports: {
 	// Remove support for an HTML mode.
-	html: false;
+	html: false
 }
 ```
 
@@ -448,7 +448,7 @@ By default, all blocks will appear in the inserter. To hide a block so that it c
 ```js
 supports: {
 	// Hide this block from the inserter.
-	inserter: false;
+	inserter: false
 }
 ```
 
@@ -462,7 +462,7 @@ A non-multiple block can be inserted into each post, one time only. For example,
 ```js
 supports: {
 	// Use the block just once per post
-	multiple: false;
+	multiple: false
 }
 ```
 
@@ -610,4 +610,4 @@ attributes: {
         }
     }
 }
-```
+```