Added prompt: YouTube Transcript Summarizer

[EBBozkurt]

Add New Prompt

You'll need to add your prompt into README.md, and to the prompts.csv file. If
your prompt includes quotes, you will need to double-quote them to escape in CSV
file.

If the prompt is generated by AI, please add <mark>Generated by AI</mark> to
the end of the contribution line.

• I've confirmed the prompt works well
• I've added
  Contributed by: [@yourusername](https://github.com/yourusername)
• I've added to the README.md
• I've added to the prompts.csv
  • Escaped quotes by double-quoting them
  • No spaces after commas after double quotes. e.g. "Hello","hi", not
    "Hello", "hi"
  • Removed "Act as" from the title on CSV

Please make sure you've completed all the checklist.

PR Comment:

This prompt helps generate detailed summaries from YouTube transcripts, with bullet points, real-life analogies, and keyword explanations — all in a clean, structured format.

Useful for anyone needing quick, insightful overviews of long video content.

[EBBozkurt]

@f, could you please check this when you have a moment?