some docs cleanup for OTP
some docs cleanup for OTP

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