docs: add prefixer docs

Author: streamich

README.md

@@ -33,6 +33,7 @@ __Tiny [5<sup>th</sup> generation](https://github.com/streamich/freestyler/blob/
   - [`nesting`](./docs/nesting.md)
   - [`keyframes()`](./docs/keyframes.md)
   - [`hydrate`](./docs/hydrate.md)
+  - [`prefixer`](./docs/prefixer.md)
   - [`stylis`](./docs/stylis.md)
   - [`unitless`](./docs/unitless.md)
   - [`!important`](./docs/important.md)

docs/Addons.md

@@ -21,6 +21,7 @@ plenty more to chose from. Below is a list of addons shipped with `nano-css`.
 - [`nesting`](./nesting.md) — better nesting features
 - [`keyframes()`](./keyframes.md) — adds `@keyframes` support
 - [`hydrate`](./hydrate.md) — adds support for re-hydration on client side
+- [`prefixer`](./prefixer.md) — auto-prefixes your styles with correct vendor prefixes
 - [`stylis`](./stylis.md) — write CSS as strings
 - [`unitless`](./unitless.md) — automatically adds `px` to styles
 - [`!important`](./important.md) — adds `!important` to all declarations

docs/prefixer.md

@@ -0,0 +1,28 @@
+# `prefixer` Addon
+
+Uses [`inline-style-prefixer`](https://github.com/rofrischmann/inline-style-prefixer) library
+to auto-prefix your styles on the server and browser.
+
+Example:
+
+```js
+nano.put('.foo', {
+    flex: 1
+});
+```
+
+Result:
+
+```css
+.foo {
+    -webkit-flex:1;
+    flex:1;
+}
+```
+
+
+## Installation
+
+Simply install `prefixer` addon.
+
+Read more about the [Addons Installation](./Addons.md#addon-installation).