Bug 578309: Tidy up documentation HTML files in /concepts Wrap lines at 120 Change-Id: I15cb2a31ed8f6f81e55d6cd61fba44d202e2dc64 Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.common/+/190406 Tested-by: Alexander Kurtakov <akurtako@redhat.com> Reviewed-by: Alexander Kurtakov <akurtako@redhat.com>