[dxwg] new commits pushed by davebrowning

The following commits were just pushed by davebrowning to https://github.com/w3c/dxwg:

* Clarify that the activity that generated a dataset might be on-going
  by Simon Cox
https://github.com/w3c/dxwg/commit/5378734fc75d74956fd13035a8d84bb04befdb0e

* Update index.html

Fix indents in code examples
  by Simon Cox
https://github.com/w3c/dxwg/commit/feccb119bb1b4413d138c23cf02e0ca7499eff61

* Merge branch 'gh-pages' into dcat-issue71-simon
  by Simon Cox
https://github.com/w3c/dxwg/commit/80e2115e23fd1ac20847389c054413cce44d4fd6

* Fix dodgy indenting and line-feed
  by Simon Cox
https://github.com/w3c/dxwg/commit/f6d9a88d558f8e4e8d32bab8f2dcd45384f5d587

* Merge pull request #338 from w3c/dcat-issue71-simon

Clarify that the activity that generated a dataset might be on-going
  by David Browning
https://github.com/w3c/dxwg/commit/f29f3ad7759e8129b90bec93245152b5d9082965