docs(readme): add features and usage instructions

README.md

@@ -2,17 +2,50 @@
 
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 A flat [JSON Resume](https://jsonresume.org/) theme, compatible with the latest [resume schema](https://github.com/jsonresume/resume-schema).
-
 Inspired by [jsonresume-theme-flat](https://github.com/erming/jsonresume-theme-flat).
 
+- 💄 Markdown support
+- 📐 CSS grid layout
+- 🧩 Standalone CLI
+
+[View demo →](https://jsonresume-theme-even.netlify.app)
+
 ## Installation
 
 ```console
 npm install jsonresume-theme-even
 ```
+
+## Usage
+
+### With resume-cli
+
+[resume-cli](https://github.com/jsonresume/resume-cli) comes with _Even_ and uses it by default, so you don't even (pun intended) need to install the theme yourself:
+
+```console
+npm install resume-cli
+npx resume export resume.html
+```
+
+### With Resumed
+
+[Resumed](https://github.com/rbardini/resumed) requires you to install the theme, since it does not come with any by default. It will then automatically load and use _Even_ when rendering a resume:
+
+```console
+npm install resumed jsonresume-theme-even
+npx resumed render
+```
+
+### Standalone usage
+
+_Even_ comes with a barebones CLI that reads resumes from `stdin` and outputs HTML to `stdout`. This allows usage without any resume builder tools:
+
+```console
+cat resume.json | npx jsonresume-theme-even > resume.html
+```