Add logout, only login if not already logged in (#91)

Also:
- Ensures that a key is generated as soon as a user registers!
- Ensures that "atuin key" will generate a key if needed, and doesn't
  double base64 encode data

And a few other little fixes :)

Resolves #85
Resolves #86

1 files changed, 6 insertions, 0 deletions

diff --git a/docs/sync.md b/docs/sync.md
index 78510526..81e8b598 100644
--- a/docs/sync.md
+++ b/docs/sync.md
@@ -53,3 +53,9 @@ If you want to login to a new machine, you will require your encryption key
 ```
 atuin login -u <USERNAME> -p <PASSWORD> -k <KEY>
 ```
+
+## Logout
+
+```
+atuin logout
+```