fix: Fix hyperlink to MetadataAttributes section (#270)

Current hyperlink for `MetadataAttributes` points to editing the doc, instead of viewing. This change fixes the link so that when users click on the link, they will be directed to directly view the doc.

docs/cdn_commands.md

@@ -57,7 +57,7 @@ if(awsCreds) awsRum.setAwsCredentials(credentialProvider);
 | dispatch | None | `cwr('dispatch');`<br/><br/>`awsRum.dispatch();` | Flush RUM events from the cache and dispatch them to CloudWatch RUM using [`fetch`](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API). 
 | dispatchBeacon | None | `cwr('dispatchBeacon');`<br/><br/>`awsRum.dispatchBeacon();` | Flush RUM events from the cache and dispatch them to CloudWatch RUM using [`sendBeacon`](https://developer.mozilla.org/en-US/docs/Web/API/Beacon_API). 
 | enable | None | `cwr('enable');`<br/><br/>`awsRum.enable();` | Start recording and dispatching RUM events.
-| addSessionAttributes | [MetadataAttributes](https://github.com/aws-observability/aws-rum-web/edit/main/docs/configuration.md#metadataattributes)| `cwr('addSessionAttributes', { applicationVersion: '1.3.8' });` <br/><br/> `awsRum.addSessionAttributes({ applicationVersion: '1.3.8' });`| Add custom attributes to the metadata of all events in the session.
+| addSessionAttributes | [MetadataAttributes](https://github.com/aws-observability/aws-rum-web/blob/main/docs/configuration.md#metadataattributes)| `cwr('addSessionAttributes', { applicationVersion: '1.3.8' });` <br/><br/> `awsRum.addSessionAttributes({ applicationVersion: '1.3.8' });`| Add custom attributes to the metadata of all events in the session.
 | recordPageView | String \| [PageView](#pageview) | Record a page view: <br/> `cwr('recordPageView', '/home');`<br/><br/>`awsRum.recordPageView('/home')`<br/><br/> Record a page view with tags: <br/>`cwr('recordPageView', { pageId: '/home', pageTags: ['en', 'landing'] });` <br/><br/> `awsRum.recordPageView({ pageId: '/home', pageTags: ['en', 'landing'] });` <br/><br/> Record a page view with custom metadata attributes: <br/>`cwr('recordPageView', { pageId: '/home', pageAttributes: { pageOrder: 1, template: 'studio' }});` <br/><br/> `awsRum.recordPageView({ pageId: '/home', pageAttributes: { pageOrder: 1, template: 'studio' }});`| Record a page view event.<br/><br/> If you wish to manually record page views instead of using the web client's page view automation, you must  disable the automation using the `disableAutoPageView` configuration option, and instrument your application to record page views using  the `recordPageView` command.<br/><br/>You can tag pages by setting the `pageTags` property, which is an array of strings. Later, you can use these tags to group pages when aggregating data. <br/><br/>You can add custom attributes to the metadata of all events that occur on this page.
 | recordError | Error \|&nbsp;ErrorEvent \|&nbsp;String | `try {...} catch(e) { cwr('recordError', e); }`<br/><br/>`try {...} catch(e) { awsRum.recordError(e); }` | Record a caught error.
 | registerDomEvents | Array | `cwr('registerDomEvents', [{ event: 'click', cssLocator: '[label="label1"]' }]);`<br/><br/>`awsRum.registerDomEvent([{ event: 'click', cssLocator: '[label="label1"]' }]);` | Register target DOM events to record. The target DOM events will be added to existing target DOM events. The parameter type is equivalent to the `events` property type of the [interaction telemetry configuration](https://github.com/aws-observability/aws-rum-web/blob/main/docs/cdn_installation.md#interaction).
@@ -78,4 +78,4 @@ versions of the CloudWatch RUM web client.
 
 The RUM web client also records a set of [default
 attributes](https://github.com/aws-observability/aws-rum-web/blob/main/src/event-schemas/meta-data.json).
-You cannot overwrite default attributes with custom attributes.
+You cannot overwrite default attributes with custom attributes.