docs: Updated http link in asyncapi specification file to https

Author: Laghav123

spec/asyncapi.md

@@ -840,7 +840,7 @@ Field Name | Type | Description
 <a name="operationObjectChannel"></a>channel | [Reference Object](#referenceObject) | **Required**. A `$ref` pointer to the definition of the channel in which this operation is performed. If the operation is located in the [root Operations Object](#operationsObject), it MUST point to a channel definition located in the [root Channels Object](#channelsObject), and MUST NOT point to a channel definition located in the [Components Object](#componentsObject) or anywhere else. If the operation is located in the [Components Object](#componentsObject), it MAY point to a [Channel Object](#channelObject) in any location. Please note the `channel` property value MUST be a [Reference Object](#referenceObject) and, therefore, MUST NOT contain a [Channel Object](#channelObject). However, it is RECOMMENDED that parsers (or other software) dereference this property for a better development experience.
 <a name="operationObjectTitle"></a>title | `string` | A human-friendly title for the operation.
 <a name="operationObjectSummary"></a>summary | `string` | A short summary of what the operation is about.
-<a name="operationObjectDescription"></a>description | `string` | A verbose explanation of the operation. [CommonMark syntax](http://spec.commonmark.org/) can be used for rich text representation.
+<a name="operationObjectDescription"></a>description | `string` | A verbose explanation of the operation. [CommonMark syntax](https://spec.commonmark.org/) can be used for rich text representation.
 <a name="operationObjectSecurity"></a>security | [[Security Scheme Object](#securitySchemeObject) \| [Reference Object](#referenceObject)]| A declaration of which security schemes are associated with this operation. Only one of the [security scheme objects](#securitySchemeObject) MUST be satisfied to authorize an operation. In cases where [Server Security](#serverObjectSecurity) also applies, it MUST also be satisfied.
 <a name="operationObjectTags"></a>tags | [Tags Object](#tagsObject) | A list of tags for logical grouping and categorization of operations.
 <a name="operationObjectExternalDocs"></a>externalDocs | [External Documentation Object](#externalDocumentationObject) \| [Reference Object](#referenceObject) | Additional external documentation for this operation.