docs: ensure consistency in declaring LANGCHAIN_API_KEY... (#14823)

... variable, accompanied by a quote

Co-authored-by: Yacine Bouakkaz <Yacine.Bouakkaz@evokegroup.com>
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Yacine 2023-12-17 16:41:44 -05:00 committed by GitHub
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@ -66,7 +66,7 @@ If you do want to use LangSmith, after you sign up at the link above, make sure
```shell ```shell
export LANGCHAIN_TRACING_V2="true" export LANGCHAIN_TRACING_V2="true"
export LANGCHAIN_API_KEY=... export LANGCHAIN_API_KEY="..."
``` ```
### LangServe ### LangServe