update changelog for release 0.7.20
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+# 0.7.20 - Refactor
+
+* 9baa714d - chore: bump minor version of matching crate (Ronald Holshausen, Fri Jul 23 14:03:20 2021 +1000)
+* 533c9e1f - chore: bump minor version of the Pact models crate (Ronald Holshausen, Fri Jul 23 13:15:32 2021 +1000)
+* 3dccf866 - refacfor: moved the pact structs to the models crate (Ronald Holshausen, Sun Jul 18 16:58:14 2021 +1000)
+* e8046d84 - refactor: moved interaction structs to the models crate (Ronald Holshausen, Sun Jul 18 14:36:03 2021 +1000)
+* cf00f528 - bump version to 0.7.20 (Ronald Holshausen, Sun Jul 11 17:11:29 2021 +1000)
+
# 0.7.19 - Refactor: Moved structs to models crate
* e2e10241 - refactor: moved Request and Response structs to the models crate (Ronald Holshausen, Wed Jul 7 18:09:36 2021 +1000)
