docs: fix flowchart mermaidjs syntax

docs: add step to setup email & password

docs: update latest test version

fix: update expect script to exit

docs: add expect script usage

fix: make wraith.example.exp executable by default

refactor: update example

docs: simplify usage

feat: write custom expect script

fix: update crontab backup command

fix: use autoexpect in conservative mode

docs: update usage steps

docs: update broken references

docs: remove tar reference

refactor: use ghost backup CLI to back up content/