[refs #206] Document the form element changes

CHANGELOG.md

@@ -2,6 +2,14 @@
 
 ## 0.3.0 (Prerelease) - Dec 03, 2018
 
+:boom: **Breaking changes**
+
+- Footer - Nunjucks macro arguments no longer contains `secondaryLinks` only `primaryLinks` ([PR 208](https://github.com/nhsuk/nhsuk-frontend/pull/208))
+
+:new: **New features**
+
+- Form elements - All form elements have now been added to NHS.UK Frontend. Including a new transactional header and footer.
+
 ## 0.2.1 (Prerelease) - Nov 27, 2018
 
 :wrench: **Fixes**
@@ -46,7 +54,6 @@
 - Expander SVG background image base64 ([PR 236](https://github.com/nhsuk/nhsuk-frontend/pull/236))
 - A-Z navigation fixes ([PR 240](https://github.com/nhsuk/nhsuk-frontend/pull/240))
 
-
 ## 0.1.4 (Prerelease) - Nov 13, 2018
 
 :tada: **Initial release of the NHS.UK Frontend**