Minor changes to installation instructions.

[hannorein]

I've done a fresh installation of layup and all dependencies on linux. Everything works well. I've made some small edits to the installation instructions.

One thing I noticed: On my cluster, the home directory is on a different partition than the "big" data partition. I think this is a fairly common setup. Currently, if I create a virtual environment with layup on the data partition, then it still writes almost half the data to my home partition, i.e. ~1.6G of files to ~/.cache/layup. In my opinion it would be nice to keep all of layup's files within the directory it is installed in. But I understand that the ~/.cache approach is kind of a standard thing to do... So I don't know. Not a big issue, I guess.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@60b5b75). Learn more about missing BASE report.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #443   +/-   ##
=======================================
  Coverage        ?   63.29%           
=======================================
  Files           ?       34           
  Lines           ?     4059           
  Branches        ?        0           
=======================================
  Hits            ?     2569           
  Misses          ?     1490           
  Partials        ?        0           

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[mschwamb]

You can specify with the bootstrap utility where you want the files that normally go into ~/.cache and in all of the layup verbs there is an --ar which allows you to specify where the cache files are if they're not in the usual place. I think that does what you want @hannorein