Move AEAD documentation to the right section
Move AEAD documentation to the right section

remicollet/libsodium-php,jedisct1/libsodium-php,jedisct1/libsodium-php,paragonie/libsodium-php,remicollet/libsodium-php,thebigb/libsodium-php,netroby/libsodium-php,jedisct1/libsodium-php,remicollet/libsodium-php,thebigb/libsodium-php,paragonie/libsodium-php,paragonie/libsodium-php,netroby/libsodium-php