Adding v1.1.5 Changelog updates

CHANGELOG.md

@@ -6,13 +6,15 @@ Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 
 #### [v1.1.5](https://github.com/nevermined-io/contracts/compare/v1.1.4...v1.1.5)
 
-> 1 September 2021
+> 3 September 2021
 
+- Add circuit artifacts [`#158`](https://github.com/nevermined-io/contracts/pull/158)
+- Bump mathjs from 7.0.2 to 7.5.1 [`#157`](https://github.com/nevermined-io/contracts/pull/157)
 - Transfer proof [`#121`](https://github.com/nevermined-io/contracts/pull/121)
 - Bump path-parse from 1.0.6 to 1.0.7 [`#149`](https://github.com/nevermined-io/contracts/pull/149)
+- add circuit artifacts [`84e3ce0`](https://github.com/nevermined-io/contracts/commit/84e3ce0d0346e2acda8dba1766640f4e9a9ac85b)
 - changed condition [`90d6a43`](https://github.com/nevermined-io/contracts/commit/90d6a43a673f8ca8a7469649715a92302d241516)
 - simple test [`ff4fe5b`](https://github.com/nevermined-io/contracts/commit/ff4fe5b9d6de4190ab792a9f265d3932f0d8e46b)
-- some weird problems [`c5a3742`](https://github.com/nevermined-io/contracts/commit/c5a37423b9a97be6f7f1e1768b14a86828013cb3)
 
 #### [v1.1.4](https://github.com/nevermined-io/contracts/compare/v1.1.3...v1.1.4)