docs(digitalocean): update deployment guide

[christopher4lis]

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Current docs are incomplete as they don't specify how to set up a run command after build. This should fix that. Others have this issue as shown here: https://www.youtube.com/watch?v=hANbHC90xug. Thanks to Jahid Anowar for figuring it out.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codecov]

Codecov Report

Merging #862 (19d0414) into main (456f82a) will decrease coverage by 0.02%.
The diff coverage is 77.77%.

@@            Coverage Diff             @@
##             main     #862      +/-   ##
==========================================
- Coverage   67.15%   67.13%   -0.02%     
==========================================
  Files          59       59              
  Lines        5782     5785       +3     
  Branches      613      614       +1     
==========================================
+ Hits         3883     3884       +1     
- Misses       1891     1893       +2     
  Partials        8        8              

Impacted Files	Coverage Δ
src/rollup/plugins/externals.ts	94.48% <77.77%> (-0.43%)	⬇️

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[pi0]

Thanks!