Code is a nice open source text editor from microsoft, https://code.visualstudio.com
Docs, https://code.visualstudio.com/Docs
Here are my notes-to-self about cool stuff:
Go to File > Preferences > User Settings, then add { "editor.wrappingColumn": 0, } to the settings.json on the right side.
click Ctrl+Shift+V to preview file.
Emmet snippet expansion, write the abbreviation and press tab.
Cheatsheet, http://docs.emmet.io/cheat-sheet/
Auto format html, highlight area and Ctrl+Shift+I.
Setting for auto format are in File > Preferences > User Settings, add "html.format.wrapLineLength": 0, to prevent auto link breaks.