Summary: AskYourPDF adds multi-document chat feature

Why It Matters: The product is moving from analyzing single files to connecting multiple documents through a "Knowledge Base." This helps users who need to find connections across many different files at once.

What Changed:

• The main headline now highlights chatting with multiple documents instead of just generating summaries.
• A new link was added to a "documents" page to support the Knowledge Base feature.
• The hero text changed from a general "Get Instant Answers" message to a specific focus on turning complex PDFs into summaries for exams.