Update README and CHANGELOG for v.1.3.24 release

Author: jtreanor

CHANGELOG.md

@@ -1,4 +1,8 @@
 # Changelog
+## [v1.3.24](https://github.com/wordpress-mobile/AztecEditor-Android/releases/tag/v1.3.24)
+### Changed
+- Improvement to how clickable URL spans are handled #793
+
 ## [v1.3.23](https://github.com/wordpress-mobile/AztecEditor-Android/releases/tag/v1.3.23)
 ### Fixed
 - Fix for crash when inserting characters right before an image #801

README.md

@@ -105,7 +105,7 @@ repositories {
 ```
 ```gradle
 dependencies {
-    api ('com.github.wordpress-mobile.WordPress-Aztec-Android:aztec:v1.3.23')
+    api ('com.github.wordpress-mobile.WordPress-Aztec-Android:aztec:v1.3.24')
 }
 ```