Merge pull request #120 from osjjames/patch-1

docs/3.0/avo-2-avo-3-upgrade.md

@@ -86,6 +86,33 @@ field :status,
 ```
 :::
 
+:::option `heading` has become a field type
+Before, a heading used the `heading` method with a text string or HTML string as an argument.
+Now, it is a field type with an ID. It supports rendering as text and as HTML.
+
+### Actions to take
+
+Rename `heading` to `field`. Give the field an ID and add the `as: :heading` argument.
+
+```ruby
+# Before
+heading 'User Information'
+
+# After
+field :user_information, as: :heading
+# or...
+field :some_id, as: :heading, label: 'User Information'
+
+# Before
+heading '<div class="underline uppercase font-bold">User Information</div>', as_html: true
+
+# After
+field :some_id, as: :heading, as_html: true do
+  '<div class="underline uppercase font-bold">User Information</div>'
+end
+```
+:::
+
 :::option Moved some globals from `Avo::App` to `Avo::Current`
 
 ### Actions to take