Add niotna/niotna-theme

Add `niotna/niotna-theme` theme

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

README.md

@@ -2159,6 +2159,7 @@ If you're using [Antigen](https://github.com/zsh-users/antigen), you can test th
 - [nidoranarion](https://github.com/NicolaiRuckel/nidoranarion) - Colorful, shows `git` status decorations.
 - [nikitakot](https://github.com/nikitakot/nikitakot-oh-my-zsh-theme) - Small and simple oh-my-zsh theme. Shows current directory and 2 directories behind, `git` and `nodejs` status decorations.
 - [ningxia](https://github.com/wangyandong-ningxia/ningxia.zsh-theme) - Based on af-magic.
+- [niotna](https://github.com/niotna/niotna-theme) - Includes decorators for `git` status and current directory. Customizable colors.
 - [nknu](https://github.com/aanc/oh-my-zsh-nknu-theme) - A simple oh-my-zsh theme.
 - [nmaxcom](https://github.com/nmaxcom/nmaxcom-zsh-theme) - Minimalist ZSH theme with `git` status decorations.
 - [node](https://github.com/skuridin/oh-my-zsh-node-theme) - oh-my-zsh's Node.js theme, broken out to make it easier to use with other plugin managers.