Fixed some grammar in the docs
Fixed some grammar in the docs

Hasimir/cryptography,sholsapp/cryptography,Ayrx/cryptography,bwhmather/cryptography,kimvais/cryptography,sholsapp/cryptography,bwhmather/cryptography,Hasimir/cryptography,skeuomorf/cryptography,skeuomorf/cryptography,skeuomorf/cryptography,bwhmather/cryptography,kimvais/cryptography,sholsapp/cryptography,kimvais/cryptography,sholsapp/cryptography,Ayrx/cryptography,kimvais/cryptography,Hasimir/cryptography,Ayrx/cryptography,Ayrx/cryptography,skeuomorf/cryptography,Hasimir/cryptography,bwhmather/cryptography