A few fixes

[Code0x58]

Here are a few fixes that I needed to get the code running smoothly locally:

• disable caching while building
• update uvloop version so there isn't an exception caused by a missing module/member in the containers
• hammer away at the docker container to make sure it has stopped before another one tries to start
• make sure only one type of benchmark is running at a time so the HTML formatting doesn't blow up, seemed reasonable (and simpler) to add a constraint
• nice to have updated kb → KiB as kb wasn't kilobits
• useful updated README.md to give versions for the required software that are known to work (including wrk which wasn't listed), and added a working example of run_benchmarks

[Code0x58]

poke is this satisfactory now?