misspell correction
Merge pull request #2 from tangshiping/new_rules

Too many people are spilling coffee
Merge pull request #1 from tangshiping/deadly_skills

add skills list to introduction.md
Merge pull request #1 from tangshiping/deadly_skills

add skills list to introduction.md
Merge branch 'master' of https://github.com/tangshiping/dojo_rules
Merge branch 'deadly_skills'