fix: correct readme for meta models description

[zkewal]

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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
17-ai-agents/README.md	# Link Line Number 1 https://python.langchain.com/docs/modules/agents/?WT.mc_id=academic-105485-koreyst 41
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
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/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/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/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