Changelog of @hackage/som 10.1.3

Changelog for som

10.1.3 Added SGM3. 10.1.2 Fixed a warning. Added SGM2. 10.1.1 Fixed a warning. Added more documentation. 10.0.1 Upgraded to Stackage lts-12.16. 10.0.0 Revamped to work with Stack v1.7.1.

Unreleased changes