Add some images to README

[aik099]

This is a GUI project for XHProf and I see no image in README that shows how it looks. Isn't that strange?

[Mte90]

yes will be very useful to evaluate if use that tool

[glensc]

@aik099 this happens when programmers write a GUI tool, not designers :D

What views are you interested in?

here's index view:

[Mte90]

I think the single view of a request

[glensc]

[aik099]

@glensc , what different views do we have? I've used these views, but maybe there are more:

• list view - where all recorded profiling sessions are shown
• details view - where I can see individual profiling session details
• callgraph view - the dynamic/static SVG image shown call graph with execution/memory time and problematic points highlighted
• comparison view - way to compare 2 profiling sessions and see if any improvement was made

[glensc]

found some blog posts (from https://varyingvagrantvagrants.org/docs/en-US/references/tideways-xhgui/) that have images included. perhaps just add the links to readme?

• https://blog.engineyard.com/profiling-with-xhprof-xhgui-part-1
• https://blog.engineyard.com/profiling-with-xhprof-xhgui-part-2
• https://blog.engineyard.com/profiling-with-xhprof-xhgui-part-3

[aik099]

That's a good idea. I wonder if XHGui images used there:

• actually are from this project and not it's clone, because I haven't seen such callgraph in here: https://www.youtube.com/watch?v=Llc5qNuiMIw ;
• are still valid in 2020 year (taken in 2013 year).