CHANGELOG.md in seo_cache-0.3.0 vs CHANGELOG.md in seo_cache-0.4.0

@@ -1,4 +1,10 @@
+## 0.4.0
+
+- Complete README
+- Add new tests to cover disk and memory
+- Remove "disk_" prefix from disk_cache_path and disk_cache_extension
+
 ## 0.3.0
 
 - Add more examples in README
 - Switch chromedriver to webdrivers
 - Add tests