Update timeline.csv

[loganloganlogan]

Added details about OpenStack and the Linux Foundation's first collaborative project, OpenDaylight. Let me know if other changes are needed.

[juliaferraioli]

Hi @loganloganlogan! Thanks for the additions. These are great events to get into the timeline. One request -- the schema for an entry is:

https://github.com/juliaferraioli/opensource-timeline/blob/622cd001af56ca1c29a5a8a157edb6312bf3850a/README.md?plain=1#L9-L27

and you seem to be missing the description as well as some commas for other optional fields. Would you mind updating this PR to include them?

Then, this:

2012-09,,The OpenStack Foundation was established to promote OpenStack software and its community.,release,high,https://en.wikipedia.org/wiki/OpenStack"foundation,OpenStack,501c3,nonprofit"

Might become this:

2012-09,,The OpenStack Foundation was established to promote OpenStack software and its community, "Your description of this event",release,high,https://en.wikipedia.org/wiki/OpenStack,,,"foundation,OpenStack,501c3,nonprofit"

However, I think there might be more research needed, because the OpenStack Foundation seems to have been established as a 501c6, not a 501c3 based on the most recent docs.