a few more doc changes to gcm tag info
a few more doc changes to gcm tag info

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