Initial release of Page scraper

[nicklamonov]

New actor to just extract markdown:
Input: Start URL
Output: Markdown

Configure this actor to run in Standby mode to provide results as soon as possible.

Current draft: https://console.apify.com/organization/ZscMwFR5H7eCtWtyh/actors/oK4fp52ayRqNayFTw/source

Next steps:

• ✅ Push the code to Github
  • https://github.com/apify/page-scraper
• Review the code
• Update readme, description, logo
• Setup pricing
• Go through the publication checklist
  • https://www.notion.so/apify/Publication-of-Page-scraper-105f39950a228301971981053ce123e9
• Publish