First of all: thanks for contributing!
- Always specify zoom levels as either >= or < . Don't use = or =< or >
- Open curly braces on the same line, and close on an empty line.
- Two space indents. No tabs.
- space after : but no before
- commits must be atomic: just one consistent change per commit
- when possible, refer to an issue on the commit message, for example adding
(cf #xx)at the end of the commit message - never commit environment related changes (like layer file path or database connection settings in the .yml)
- when it makes sense, add two screenshots before/after to hightlight the changes
- keep pull request as simple as possible