Update the link to the GS on the Salesforce integration

[alaudazzi]

This PR updates the link to the Getting started guide.

[github-actions]

Please run these commands to update changelogs and build docs:

for pkg in salesforce; do
  cd packages/$pkg
  elastic-package changelog add --type enhancement --description "Improve documentation" --link "https://github.com/elastic/integrations/pull/15643" --next minor
  elastic-package build
  cd ../..
done
git add -u
git commit -m "docs: update changelogs and build documentation"
git push

Prerequisite: go install github.com/elastic/elastic-package

[elastic-vault-github-plugin-prod]

🚀 Benchmarks report

Package salesforce 👍(1) 💚(2) 💔(1)

Expand to view

Data stream	Previous EPS	New EPS	Diff (%)	Result
logout	20408.16	16666.67	-3741.49 (-18.33%)	💔

To see the full report comment with /test benchmark fullreport

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 6ed3edb

History

• 💔 Build #32693 failed a9365e8

[Copilot]

Pull Request Overview

This PR updates the Getting Started guide link in the Salesforce integration documentation from an external URL to an internal docs-content reference and bumps the version to 1.5.0.

• Updated the Getting Started guide link format from external URL to internal reference
• Version bump from 1.4.0 to 1.5.0
• Added changelog entry documenting the documentation improvement

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
packages/salesforce/manifest.yml	Version bump to 1.5.0
packages/salesforce/docs/README.md	Updated Getting Started link to internal reference
packages/salesforce/changelog.yml	Added changelog entry for version 1.5.0
packages/salesforce/_dev/build/docs/README.md	Updated Getting Started link to internal reference (build artifact)

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[stefans-elastic]

LGTM