Update changelog

CHANGELOG.md

@@ -6,14 +6,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [3.5.0] - 2020-xx
 ### Added
+- #136 => Add detail view for spectra type object and default object
 
 ### Fixed
 
 ### Changed
+- #139 => Datasets selected in search multiple is a configurable option in anis-admin
+- #138 => Sort attributes and put scrollbar if table too long in Documentation module
 - #133 => Change typo if only one dataset
 
-
-
 ## [3.4.0] - 2020-10
 ### Added
 - #132 => Add reset cone search button in search multiple