Refactor or update present documentation pages

[ShamsUlAzeem]

Based on Alex's review:

Page: https://serving.oss.konduit.ai/

• IMO we need a diagram (flow chart) here showing pipeline steps, with logos - TF, ONNX, PMML, DL4J, Python, Java etc. Maybe Numpy, Arrow, CUDA etc.
  • First page is only text ATM; explaining it visually too should help users to more quickly understand what it and why they should care
• Clarify what PMML means in practice - i.e., "can be used to serve models from libraries X, Y and Z (using built-in conversion)"
• Maybe mention also Java as an option for pipeline steps (1 line after datavec but before usage probably)

Page: https://serving.oss.konduit.ai/quickstart/quickstart-python

• Is it possible to define the configuration programmatically, instead of via a YAML file? If so, we should show this first/too
• A list of API methods on the server and client would be nice. I see server.start(), client.predict() - let's get the full list in a table perhaps?

Page: https://serving.oss.konduit.ai/installation

• Mentions CUDA 10.1. But TF <2.1.0 is CUDA 10.0, so not correct? (>=2.1.0 is 10.1)
• Clarify that PMML doesn't support CUDA
• Do I need to have CUDA installed? CUDNN?
• "Ensure that you have JDK 8.0 installed"
  • This should probably be 8.0 or higher
  • Do we need a link on how get Java? (I'm just thinking for Python devs who have never touched Java before)

Page: https://serving.oss.konduit.ai/building-from-source

• Clarify at the very top: When does / doesn't the user need this? If they don't need it, what's the easier alternative?
• There's lots of different modules here... as a user/developer, how do I decide which ones I need? Table, diagram, and/or flow chart etc?
• "Python bundling is not encouraged on ARM platforms" - that's vague. Why? Is it unstable? Broken? Limited?
• "> konduit init --os " - is cross-compilation possible? - i.e., say I want to build on mac but deyloy on Linux+CUDA (clarify either way)
• "Known issues - konduit init fails for linux-86_64-gpu (#115)" - issue is already closed.

Page: https://serving.oss.konduit.ai/yaml-configurations

• Clarify what "NDARRAY" type actually means. Is this NumPy format?

Page: https://serving.oss.konduit.ai/model-monitoring/monitoring-grafana

• "...to assist with troubleshooting" -> mention monitoring and debugging; it's not just (or even primarily) about problems
• Maybe a better example image of the pipeline charts would be good, so it's a bit more appealing to users?

Page: https://serving.oss.konduit.ai/examples/python/tensorflow-model-serving/tf-bert

• "This notebook illustrates..." -> it's a page, not a notebook