Update README

Change-Id: aa5dc14c67
Story-Id: SF-94
scripts: Make is possible to skip the platform

In case the platform is skipped in the script filename, the current
platform string is used when selecting the runner. This makes it
possible to use certain scripts on all platform, e.g. get_version.js

Story-Id: SF-99
Change-Id: 71ec378aa4
repo bootstrap: Fix help message

Change-Id: 87e64d88bb
Story-Id: SF-99
repo bootstrap: Fix review issues

Just some renaming.

Change-Id: 4b830ab775
Story-Id: SF-99
story open: Add README

[ci skip]

Change-Id: 5edebb573c