LightPaper - Admired by thousands, LightPaper is a powerful markdown editor with features such as Multi-Tabs, Folder Navigator, Distraction Free Mode, Quick Open, Live Preview, Full GFM Support, Math rendering etc.
Sketch Tricks - Articles for Sketch
Markdown Live Preview - Stop guessing about your Markdown formatting 📝
The Good Workshop - TGW helps experts plan, run, and track UX, CX, Product and innovation workshops, fully automated and straightforward user experience.
Typora - A minimal Markdown reading & writing app.
Git Sketch Plugin - Version control for designers