Added 0.13.0 release doc

Author: saratnt

doc/release/0.13.0.md

@@ -0,0 +1,30 @@
+# Release notes - version 0.13.0
+
+---
+
+## Notes about new/updated Features
+
+### Preimages enabling
+A new property was added to the config file for enabling the storage of preimages. Preimages contain the account 
+addresses that are not usually saved in the state trie. Enabling preimages is a pre-requirement for executing a state dump.
+
+How to specify it: 
+- inside the config file, add a property like this inside the *evmStateDump* section:
+
+  enabled = "true"
+
+
+---
+## Bug Fixes
+
+---
+
+## Improvements
+ 
+---
+## Update test instructions from previous version
+
+
+---
+Full [Changelog](/CHANGELOG.md) file here
+