move blowfish docs to new weak ciphers section, linkify aes
move blowfish docs to new weak ciphers section, linkify aes

bwhmather/cryptography,kimvais/cryptography,Lukasa/cryptography,sholsapp/cryptography,Hasimir/cryptography,sholsapp/cryptography,Ayrx/cryptography,Hasimir/cryptography,glyph/cryptography,dstufft/cryptography,Lukasa/cryptography,skeuomorf/cryptography,dstufft/cryptography,Lukasa/cryptography,dstufft/cryptography,Ayrx/cryptography,skeuomorf/cryptography,skeuomorf/cryptography,Hasimir/cryptography,sholsapp/cryptography,dstufft/cryptography,dstufft/cryptography,kimvais/cryptography,sholsapp/cryptography,kimvais/cryptography,Ayrx/cryptography,skeuomorf/cryptography,bwhmather/cryptography,Hasimir/cryptography,glyph/cryptography,bwhmather/cryptography,bwhmather/cryptography,Ayrx/cryptography,kimvais/cryptography