Improved description of Generative AI elements

Dear all,

in the last call we discussed a more visible representation of LLMs in 
https://w3c.github.io/voiceinteraction/voice%20interaction%20drafts/paArchitecture/paArchitecture-1-3.htm. 
I created issue #52 for this purpose: 
https://github.com/w3c/voiceinteraction/issues/52

I made some first attempts to have this compined. Please, check sections

  * 3. Architectures
      o image for basic architecture
      o descriptive text of this image
  * 3.2 Dialog Layer
      o 2 images to represent the different flavors of an IPA
      o descriptove text for these images
  * 3.2.5 Prompt adaptation
      o new section
  * 3.2.6 LLM
      o new section
  * 3.6 Resulting architecture
      o image for resulting architecture
      o description of this image

Let me know if there is something that ought to be improved, maybe by 
asking the following questions

  * Do I easily get the message from the images?
  * Is there something in the images that confuses me?
  * Is there a better way to show it?
  * Does the description and image match my understanding of such systems?
  * Is there something in the text that I am missing?
  * Is there something in the text that confuses me?
  * Is there something in the text that should be removed?
  * Is there something in the text that should be expressed differently?

Thank you

Dirk