v1.2.0: Make compatible with Statamic 3.3

• Thanks @jonassiewertsen for extending the testing matrix to statamic 3.3 and fixing some stuff in the readme.

What's Changed

• Support Statamic 3.3 by @jonassiewertsen in #14
• Fix typo in readme by @jonassiewertsen in #15
• Fix readme examples by @jonassiewertsen in #16

New Contributors

• @jonassiewertsen made their first contribution in #14

Full Changelog: v1.1.0...v1.2.0