docs: Fix syntax of batshit in batching-requests article

[u9g]

See quickstart heading here: https://www.npmjs.com/package/@yornaath/batshit for correct syntax

[codesandbox-ci[bot]]

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Sandbox	Source
@tanstack/query-example-react-basic-typescript	Configuration
@tanstack/query-example-solid-basic-typescript	Configuration
@tanstack/query-example-svelte-basic	Configuration
@tanstack/query-example-vue-basic	Configuration

[TkDodo]

this is exactly the reason why in v5, we’ve moved away from showing how something works and instead just link to community projects: https://tanstack.com/query/v5/docs/framework/react/community/community-projects