Add install steps to README.md

[jonathanKingston]

Asana Task/Github Issue:

Description

Add install steps to the README.

Testing Steps

Checklist

Please tick all that apply:

• I have tested this change locally
• I have tested this change locally in all supported browsers
• This change will be visible to users
• I have added automated tests that cover this change
• I have ensured the change is gated by config
• This change was covered by a ship review
• This change was covered by a tech design
• Any dependent config has been merged

[netlify]

✅ Deploy Preview for content-scope-scripts ready!

Name	Link
🔨 Latest commit	20a1a9b
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😎 Deploy Preview	https://deploy-preview-1282--content-scope-scripts.netlify.app
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[github-actions]

Temporary Branch Update

The temporary branch has been updated with the latest changes. Below are the details:

• Branch Name: pr-releases/pr-1282
• Commit Hash: cf96ea48e9390a1dae5163dd751f979c2584528e
• Install Command: npm i github:duckduckgo/content-scope-scripts#cf96ea48e9390a1dae5163dd751f979c2584528e

Please use the above install command to update to the latest version.

[github-actions]

[Beta] Generated file diff

Time updated: Wed, 27 Nov 2024 09:40:30 GMT

[mallexxx]

LGTM 👍