[#108, #109] Update changelog

docs/changelog.rst

@@ -7,11 +7,15 @@ Change Logs
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     * **Bug**         -  # 106_: It crashes when saving a workflow object when there is no workflow definition for a state field
     * **Bug**         -  # 107_: next_approvals api of the instance is broken
+    * **Improvement** -  # 108_: Status column of transition approvals are now kept as string in the DB instead of number to maintain readability and avoid mistakenly changed ordinals.
+    * **Improvement** -  # 109_: Cancel all other peer approvals that are with different branching state.
     * **Improvement** -  # 105_: More dynamic and better way for hooks.On the fly function and hook creations, update or delete are also supported now. It also comes with useful admin interfaces for hooks and functions. This is a huge improvement for callback lovers :-)
 
 .. _105: https://github.com/javrasya/django-river/issues/105
 .. _106: https://github.com/javrasya/django-river/issues/106
 .. _107: https://github.com/javrasya/django-river/issues/107
+.. _108: https://github.com/javrasya/django-river/issues/108
+.. _109: https://github.com/javrasya/django-river/issues/109
 
 2.0.0 (Stable)
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