docs(chapter-1): Fix broken image URL and list indentation

[shiftpx]

Specifically, creative-writing-example.png was not loading. Fixed the indentation around it and for the whole list. Removed extraneous <br> tags.

Before	After

[github-actions]

👋 Thanks for contributing @shiftpx! We will review the pull request and get back to you soon.

[github-actions]

Check Broken URLs

We have automatically detected the following broken URLs in your files. Review and fix the paths to resolve this issue.

Check the file paths and associated broken URLs inside them. For more details, check our Contributing Guide.

File Full Path	Issues
04-prompt-engineering-fundamentals/README.md	# Link Line Number 1 https://python.langchain.com/docs/modules/model_io/prompts/prompt_templates/?WT.mc_id=academic-105485-koreyst 284
04-prompt-engineering-fundamentals/translations/ko/README.md	# Link Line Number 1 https://python.langchain.com/docs/modules/model_io/prompts/prompt_templates/?WT.mc_id=academic-105485-koreyst 273
04-prompt-engineering-fundamentals/translations/tw/README.md	# Link Line Number 1 https://python.langchain.com/docs/modules/model_io/prompts/prompt_templates/?WT.mc_id=academic-105485-koreyst 278
04-prompt-engineering-fundamentals/translations/ja-jp/README.md	# Link Line Number 1 https://python.langchain.com/docs/modules/model_io/prompts/prompt_templates/?WT.mc_id=academic-105485-yoterada 298
04-prompt-engineering-fundamentals/translations/cn/README.md	# Link Line Number 1 https://python.langchain.com/docs/modules/model_io/prompts/prompt_templates/?WT.mc_id=academic-105485-koreyst 271
04-prompt-engineering-fundamentals/translations/pt-br/README.md	# Link Line Number 1 https://python.langchain.com/docs/modules/model_io/prompts/prompt_templates/?WT.mc_id=academic-105485-koreyst 277
17-ai-agents/translations/tw/README.md	# Link Line Number 1 https://python.langchain.com/docs/modules/agents/?WT.mc_id=academic-105485-koreyst 41
16-open-source-models/README.md	# Link Line Number 1 https://opensource.org/osd?WT.mc_id=academic-105485-koreyst 15
16-open-source-models/translations/tw/README.md	# Link Line Number 1 https://opensource.org/osd?WT.mc_id=academic-105485-koreyst 15

[shiftpx]

@microsoft-github-policy-service agree

[shiftpx]

Errors in #629 (comment) are unrelated to the changes I made.