docs: fix lowercase a2s asyncapi anchor

Author: Ayushkumar242004

spec/asyncapi.md

@@ -146,7 +146,7 @@ It combines resource listing and API declaration together into one document.
 
 Field Name | Type | Description
 ---|:---:|---
-<a name="a2s-asyncAPI"></a>asyncapi | [AsyncAPI Version String](#a2s-version-string) | **REQUIRED.** Specifies the AsyncAPI Specification version being used. It can be used by tooling Specifications and clients to interpret the version. The structure shall be `major`.`minor`.`patch`, where `patch` versions _must_ be compatible with the existing `major`.`minor` tooling. Typically patch versions will be introduced to address errors in the documentation, and tooling should typically be compatible with the corresponding `major`.`minor` (1.0.*). Patch versions will correspond to patches of this document.
+<a name="a2s-asyncapi"></a></a>asyncapi | [AsyncAPI Version String](#a2s-version-string) | **REQUIRED.** Specifies the AsyncAPI Specification version being used. It can be used by tooling Specifications and clients to interpret the version. The structure shall be `major`.`minor`.`patch`, where `patch` versions _must_ be compatible with the existing `major`.`minor` tooling. Typically patch versions will be introduced to address errors in the documentation, and tooling should typically be compatible with the corresponding `major`.`minor` (1.0.*). Patch versions will correspond to patches of this document.
 <a name="a2s-id"></a>id | [Identifier](#a2s-id-string) | Identifier of the [application](#definitions-application) the AsyncAPI document is defining.
 <a name="a2s-info"></a>info | [Info Object](#info-object) | **REQUIRED.** Provides metadata about the API. The metadata can be used by the clients if needed.
 <a name="a2s-servers"></a>servers | [Servers Object](#servers-object) | Provides connection details of servers.