Josh Brobst

Fixes #51

Also make attempts to write ED25519 keys in PEM format an error.

In `kex_method_diffie_hellman_group_exchange_sha256_key_exchange`, `p` and `g` are later initialized with `_libssh2_bn_from_bin`, so they should be initially created using `_libssh2_bn_init_from_bin` rather than `_libssh2_bn_init`, as is done in `kex_method_diffie_hellman_group_exchange_sha1_key_exchange`.

All help output is handled by click except for `hatch` and `hatch run -h`. These get the help text and display it with `app.display_info`, which makes the entire help output...

Image description limit warning can be rendered in a code block

1

If an image's description is a code block at the limit cut-off point, then the length limit message is rendered in the code block. For example, this currently occurs with...