Merge pull request #2 from hadesli/master

syn
FAQ_6_4
add FAQ_4_1
Merge branch 'master' of github.com:theSalt/CodeFAQ
Merge pull request #11 from theSalt/master

add FAQ_4_1
add FAQ_4_3
FAQ_4_2
FAQ_4_2 Update
FAQ_4_2 update 2
FAQ_4_2 update 3