Fix formatting issues

- Add break lines to long code blocks
- Create relative link to VM folder instead of using hardcoded URL
- Remove hardcoded version number for DL_LOC
- Unify utility scripts code block examples with the rest of the README
Merge pull request #689 from sbesson/vm_instructions

Fix VM installation instructions
Remove unused import.
Fix multi-selection and attachments removal/addition (see #10343)
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 700 (Import bugs)
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 702 (Fix move data to group named 'with spaces'. See #10300)
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 703 (Make sure the reference to the connector is removed (see #10333))
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 705 (Remove annotations)
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken

Repository: openmicroscopy/openmicroscopy
Already up-to-date.
Merged PRs:
  # PR 700 jburel 'Import bugs'
  # PR 702 will-moore 'Fix move data to group named 'with spaces'. See #10300'
  # PR 703 jburel 'Make sure the reference to the connector is removed (see #10333)'
  # PR 705 jburel 'Remove annotations'

Repository: openmicroscopy/bioformats
Already up-to-date.
Merged PRs:
  # PR 363 rleigh-dundee 'Backport of PR #305 to 4.4'

Repository: ome/scripts
Already up-to-date.

Repository: openmicroscopy/ome-documentation
Already up-to-date.
Merged PRs:
  # PR 224 gusferguson 'Training material'
  # PR 238 bpindelski 'Update Ice on Windows paragraph'
  # PR 239 hflynn 'Developer Docs tidy'

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