copy changelog to readme.txt

Author: aristath

readme.txt

@@ -110,6 +110,27 @@ https://youtu.be/e1bmxZYyXFY
 
 == Changelog ==
 
+= 1.4.0 =
+
+Enhancements:
+
+* Review Content task takes into account Yoast SEO readibility score when suggesting posts to update.
+* Change update frequency for articles which are not selected in "Your page" section or as Yoast SEO Cornerstone content to 12 months.
+* Factor in Yoast SEO readibility score when suggesting which articles should be updated.
+
+Bugs we fixed:
+
+* Fixed a bug where dismissed review content tasks would reappear in the following week.
+
+Added these recommendations from Ravi:
+
+* Remove terms which have less than 2 posts.
+* Give description to terms which have more than 2 posts.
+* Suggest to install [Fewer Tags plugin](https://wordpress.org/plugins/fewer-tags/).
+* Yoast SEO: do Yoast SEO's Cornerstone Content Workout.
+* Yoast SEO: do Yoast SEO's Orphaned Content Workout.
+* Yoast SEO: add internal links to articles which don't have them.
+
 = 1.3.0 =
 
 Enhancements: