Sunny Pal

files: improve error for uncompressed Helm .tar archives

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**PR description** Summary - Detects when a user provides an uncompressed `.tar` (not a gzipped chart) to Helm chart parsing and returns a clear, actionable error telling them to use...

Add Linux Journey to MOOCs section

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## Summary of your changes ### Description This PR adds **Linux Journey** under the `🎓 MOOCs for learning something new` section of the README. Linux Journey is a free and...

Profile picture URL validation rejects valid image links from Google Drive

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### Description On the newcomers form at [https://layer5.io/newcomers](https://layer5.io/newcomers), when trying to paste a Google Drive link as the profile picture, the form shows the error: > "URL must point to...