Add dann254/mantis-zsh-theme

Add `dann254/mantis-zsh-theme`

Signed-off-by: Joe Block <[email protected]>

Author: unixorn

README.md

@@ -1980,6 +1980,7 @@ If you're using [Antigen](https://github.com/zsh-users/antigen), you can test th
 - [maivana](https://github.com/nylo-andry/zsh-themes) - Includes `kubectl` context, `git` status decorations.
 - [majemoji](https://github.com/metalogica/majemoji) - Adds a random emoji to each session's prompt. Includes `git` status decorations.
 - [malev](https://github.com/mvinan/malev-zsh-theme) - Has minimalist and normal variants. Includes decorators for hostname, directory, `git` status and the last command's exit status.
+- [mantis](https://github.com/dann254/mantis-zsh-theme) - Minimal theme with `git` status and information decorators.
 - [materialshell](https://github.com/carloscuesta/materialshell) - A [material design](https://material.io/guidelines/style/color.html) theme for your shell with a good contrast and color pops at the important parts. Designed to be easy on the eyes.
 - [matrix](https://github.com/pot-code/matrix-zsh-theme) - Variant of [powerlevel9k](https://github.com/bhilburn/powerlevel9k) styled to look like something in the Matrix movie trilogy. Includes `git` status decorations.
 - [matter](https://github.com/mrobillard/matter-zsh-theme) - Shows `git` status, AWS vault role, background jobs, exit code of last command & hostname.