website: Minor updates to stdlib docs

- Convert from reST formats to pure markdown
- Fix some typos/formatting errors
- Add a couple of comments for future improvement
- Standardize SE/FS
- Make it more clear that you don't have to compile the new component
into the gem5 binary

Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
Change-Id: I2399ee25f3a683dd1bfd50204497edbd0383d04e
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/55563
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby Bruce <bbruce@ucdavis.edu>
4 files changed