v1.0.0.pre9

What's Changed

• Bump magnus from 0.4.4 to 0.5.0 by @dependabot in #230
• Bump magnus from 0.5.0 to 0.5.1 by @dependabot in #231
• Add ability to load tmthemes from a folder by @gjtorikian in #232
• Test the new integrated rb-sys by @gjtorikian in #228
• Bump magnus from 0.5.1 to 0.5.2 by @dependabot in #233
• Bump comrak from 0.16.0 to 0.17.1 by @dependabot in #234
• Updates from upstream by @gjtorikian in #235

Full Changelog: v1.0.0.pre7...v1.0.0.pre9