Update licensing-data.md with content created in another branch

[malvikasharan]

Summary

Addresses a sub-task in #1075 created in #1194

In this PR, I make a start with the chapter on Data Licenses.

List of changes proposed in this PR (pull-request)

• Brief intro to data licenses
• Table with permission levels
• CC0 license

Edit:
More changes in subsequent commits:

• Corrections to section on CC licences
• ODC licenses
• Comparing CC and ODC licenses
• Other licensing options specific to communities or use cases

---October 2020---

• Addressed concerns raised by PR reviewers
• Converting HTML table to Markdown
• Adding references to the references.bib file

What should a reviewer concentrate their feedback on?

• Clarity of content
• Adequate to make into a chapter?
• Everything looks ok?

Acknowledging contributors

• All contributors to this pull request are already named in the table of contributors in the README file.
• The following people should be added to the table of contributors in the README file: agarwalmanvi

[malvikasharan]

This chapter is missing references in the BibTeX file (they are all linked out from here but none has been stored in the bibliography). Also, please see the suggestion from #1194

As commented by me

I see that you have covered some important ground. However, I will wait to merge it as there are a few areas of Data Licensing that needs to be covered in this chapter. We have a reference from our colleagues from DCC (see here: https://www.dcc.ac.uk/guidance/how-guides/license-research-data).

As commented by @rosiehigman

Line 11: Creative Commons licences are not specifically data licences, they are just widely used as they are easy to understand, it would be helpful to clarify this.
Line 48: CC0 is a dedication rather than a licence. It might be worth adding explicitly that you forfeit the legal right to attribution through CC0 and instead rely on academic norms.
A general suggestion would be to think about mentioning/linking to the Open Data Commons licences (https://opendatacommons.org/licenses/index.html) and the Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/). The latter is quite UK-specific but is applied to a lot of data from public bodies and so is useful for researchers to be aware of if they are re-using data.
It would be a good idea to go through and check for licence (which is the noun so should be used for CC licences etc) and license (which is a verb and so used for the act of licensing data).

As commented by @c-martinez

I agree with @rosiehigman point and that changing it en masse might be best. I would even say that we could focus in this PR on data licensing, and do a separate PR dealing with the licence vs license topic.

[malvikasharan]

@all-contributors please add @ahornos for review

[allcontributors]

@malvikasharan

I've put up a pull request to add @ahornos! 🎉

[malvikasharan]

@paulowoicho please go ahead and merge it when you are ready.