Change double quotes to single quotes

Signed-off-by: RayNjeri <rachael.njeri@andela.com>

packages/components/psammead-media-player/README.md

@@ -18,13 +18,13 @@ This component to be used at any point on the page, specifically when a media pl
 
 | Argument  | Type                | Required | Default | Example         |
 |-----------|---------------------|----------|---------|-----------------|
-| `src` | string | Yes   | - | `http://foobar.com/embeddable_endpoint` |
-| `skin` | string | No   | `"classic"` | `"audio"` |
-| `title` | string | Yes | - | `Video player` |
-| `service` | string | Yes   | - | `"news"` |
+| `src` | string | Yes   | - | `'http://foobar.com/embeddable_endpoint'` |
+| `skin` | string | No   | `'classic'` | `'audio'` |
+| `title` | string | Yes | - | `'Video player'` |
+| `service` | string | Yes   | - | `'news'` |
 | `showPlaceholder` | boolean | No   | `true` | `false` |
 | `placeholderSrc` | string | No   | `null` | `http://foobar.com/placeholder.png` |
-| `placeholderSrcset` | string | No   | `null` | `"https://bbc.com/300/cat.jpg 300w, https://bbc.com/450/cat.jpg 450w, https://bbc.com/600/cat.jpg 600w"` |
+| `placeholderSrcset` | string | No   | `null` | `'https://bbc.com/300/cat.jpg 300w, https://bbc.com/450/cat.jpg 450w, https://bbc.com/600/cat.jpg 600w'` |
 | `portrait` | boolean | No   | `false` | `true` |
 | [`mediaInfo`](#mediaInfo) | object | Yes   | - | `{ title: 'A vertical video pretending to be a cat title', duration: '2:30', durationSpoken: '2 minutes 11 seconds', datetime: 'PT2M30S' }`|
 
@@ -40,22 +40,22 @@ The `mediaInfo` prop is required, and has the following properties.
 
 | Argument  | Type                | Required | Default | Example         |
 |-----------|---------------------|----------|---------|-----------------|
-| `title` | string | Yes   | - | `"A vertical video pretending to be a cat title"` |
-| `datetime` | string | No| - | `"PT11S"` |
-| `duration` | string| No   | - | `"0:11"` |
-| `durationSpoken` | string | No   | - | `"11 seconds"` |
-| `type` | string | No   | `"video"` | `"audio"` |
-| `guidanceMessage` | string | No   | - | `"May contain strong language,sexual or violent content that may offend"` |
+| `title` | string | Yes   | - | `'A vertical video pretending to be a cat title'` |
+| `datetime` | string | No| - | `'PT11S'` |
+| `duration` | string| No   | - | `'0:11'` |
+| `durationSpoken` | string | No   | - | `'11 seconds'` |
+| `type` | string | No   | `"video"` | `'audio'` |
+| `guidanceMessage` | string | No   | - | `'May contain strong language,sexual or violent content that may offend'` |
 
 ### AmpMediaPlayer
 
 | Argument  | Type                | Required | Default | Example         |
 |-----------|---------------------|----------|---------|-----------------|
 | `src` | string | Yes   | - | `http://foobar.com/embeddable_endpoint` |
-| `placeholderSrcset` | string | No   | `null` | `	"https://bbc.com/300/cat.jpg 300w, https://bbc.com/450/cat.jpg 450w, https://bbc.com/600/cat.jpg 600w"` |
+| `placeholderSrcset` | string | No   | `null` | `	'https://bbc.com/300/cat.jpg 300w, https://bbc.com/450/cat.jpg 450w, https://bbc.com/600/cat.jpg 600w'` |
 | `title` | string | Yes | - | `Video player` |
 | `portrait` | boolean | No   | `false` | `true` |
-| `placeholderSrc` | string | Yes   | - | `http://foobar.com/placeholder.png` |
+| `placeholderSrc` | string | Yes   | - | `'http://foobar.com/placeholder.png'` |
 
 The `placeholderSrc` prop is required for AMP, as in order to have the component load an `amp-iframe` within 600px or 75% of the viewport from the top, we must have an `amp-img` placeholder. For more information on this, please refer to the [AMP docs for amp-iframe](https://amp.dev/documentation/components/amp-iframe/).