Add pixel equivalent to default values table (#15)

* add pixels conversation

* inline pixel equivalent

---------

Co-authored-by: Royer Adames <royeraadames@gmail.com>

README.md

@@ -76,19 +76,19 @@ To stop an element from acting as a container, use the `@container-normal` class
 
 By default we ship with the following configured values:
 
-| Name   | CSS                             |
-| ------ | ------------------------------- |
-| `@xs`  | `@container (min-width: 20rem)` |
-| `@sm`  | `@container (min-width: 24rem)` |
-| `@md`  | `@container (min-width: 28rem)` |
-| `@lg`  | `@container (min-width: 32rem)` |
-| `@xl`  | `@container (min-width: 36rem)` |
-| `@2xl` | `@container (min-width: 42rem)` |
-| `@3xl` | `@container (min-width: 48rem)` |
-| `@4xl` | `@container (min-width: 56rem)` |
-| `@5xl` | `@container (min-width: 64rem)` |
-| `@6xl` | `@container (min-width: 72rem)` |
-| `@7xl` | `@container (min-width: 80rem)` |
+| Name   | CSS                                          |
+| ------ | -------------------------------------------- |
+| `@xs`  | `@container (min-width: 20rem /* 320px */)`  |
+| `@sm`  | `@container (min-width: 24rem /* 384px */)`  |
+| `@md`  | `@container (min-width: 28rem /* 448px */)`  |
+| `@lg`  | `@container (min-width: 32rem /* 512px */)`  |
+| `@xl`  | `@container (min-width: 36rem /* 576px */)`  |
+| `@2xl` | `@container (min-width: 42rem /* 672px */)`  |
+| `@3xl` | `@container (min-width: 48rem /* 768px */)`  |
+| `@4xl` | `@container (min-width: 56rem /* 896px */)`  |
+| `@5xl` | `@container (min-width: 64rem /* 1024px */)` |
+| `@6xl` | `@container (min-width: 72rem /* 1152px */)` |
+| `@7xl` | `@container (min-width: 80rem /* 1280px */)` |
 
 You can configure which values are available for this plugin under the `containers` key in your `tailwind.config.js` file: