added a section about bit vector permutations
added a section about bit vector permutations

JohnEarnest/Octo,whoozle/Octo,JohnEarnest/Octo,JohnEarnest/Octo,james0x0A/Octo,whoozle/Octo,whoozle/Octo,whoozle/Octo,JohnEarnest/Octo,JohnEarnest/Octo,blastron/Octo,james0x0A/Octo,whoozle/Octo,blastron/Octo