Updating documentation URLs, formatting, text

Some issues with URLs (broken links and wrong pages), formatting
issues

See merge request !25

Some issues with URLs (broken links and wrong pages), formatting
issues

this is used to avoid wine/HAWC2 locking 2 instead 1 thread per sim

Paths to clusters for Windows wrong

The path that was listed in the docs for the mimer cluster stopped
working for mapping network drives. Plus, when displayed in
markdown, the double-back-slash turned into a single backslash,
which is wrong. This commit fixes both issues.

See merge request !24

The path that was listed here for the mimer cluster stopped
working for mapping network drives. Plus, when displayed in
markdown, the double-back-slash turned into a single backslash,
which is wrong. This commit fixes both issues.

Manturb

See merge request !23

Improving Windows docs (merge attempt 2)

My first attempt had extraneous files and commits. Hopefully this is a clean merge request.  
  
In this branch: I updated the text in docs/howto-make-dlcs.md to have more detailed information for Windows users.

Specific changes (copied from commit message):
 - Connecting to the cluster
    * split into Windows/Unix subsections
    * added much more detail on how to
      configure PuTTY
 - Mounting cluster discs
    * updated Windows text for more details
      on how to map network drives
 - Preparation
    * Changed relative path to wine config
      script to an absolute path, since it
      wasn't clear where the pbsutils path
      was and I didn't know if it was on the
      PATH
 - TODO (comment in beginning of file)
    * [ ] Separated into "TODO" and "DONE"
    * [ ] Moved a few items to "DONE"

See merge request !21