docs need updated for langchainjs example

[dprosper]

docs/tutorials/langchainjs.md

1. Missing an await in

const loader = new CheerioWebBaseLoader("https://en.wikipedia.org/wiki/2023_Hawaii_wildfires");
const data = await loader.load();

without it you get to the .splitDocuments without any data.

2. The cheerio module needs to be installed, i.e. npm install cheerio there is an error generated otherwise

Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'cheerio' imported from /../node_modules/langchain/dist/document_loaders/web/cheerio.js
    at new NodeError (node:internal/errors:405:5)
    at packageResolve (node:internal/modules/esm/resolve:887:9)
    at moduleResolve (node:internal/modules/esm/resolve:936:20)
    at defaultResolve (node:internal/modules/esm/resolve:1129:11)
    at nextResolve (node:internal/modules/esm/loader:163:28)
    at ESMLoader.resolve (node:internal/modules/esm/loader:835:30)
    at ESMLoader.getModuleJob (node:internal/modules/esm/loader:424:18)
    at ESMLoader.import (node:internal/modules/esm/loader:524:22)
    at importModuleDynamically (node:internal/modules/esm/translators:110:35)
    at importModuleDynamicallyCallback (node:internal/process/esm_loader:35:14) {
  code: 'ERR_MODULE_NOT_FOUND'
}

[aashish2057]

docs updated in PR #992

[saikethan27]

@aashish2057 is Issue still open can I work on it

[aashish2057]

@aashish2057 is Issue still open can I work on it

PR has been merged this issue should be closed