Merge pull request #299 from cmu-delphi/docs/licensing-take-2

Clarify licensing, take 2

Author: capnrefsmmat

docs/api/covidcast-signals/_source-template.md

@@ -12,7 +12,7 @@ grand_parent: COVIDcast Epidata API
 * **Number of data revisions since 19 May 2020:** 0
 * **Date of last change:** Never
 * **Available for:** county, hrr, msa, state (see [geography coding docs](../covidcast_geography.md))
-* **License:** LINK
+* **License:** [LICENSE NAME](../covidcast_licensing.md#APPLICABLE-SECTION)
 
 A brief description of what this source measures.
 
@@ -68,7 +68,7 @@ If this signal is reported with a consistent lag, describe it here.
 If this signal is regularly backfilled, describe the reason and nature of the
 backfill here.
 
-## Source
+## Source and Licensing
 
 If the signal has specific licensing or sourcing that should be acknowledged,
 describe it here. Also, include links to source websites for data that is

docs/api/covidcast-signals/jhu-csse.md

@@ -125,4 +125,9 @@ properly.
 This data set is republished from the COVID-19 Data Repository by the Center for
 Systems Science and Engineering (CSSE) at Johns Hopkins University, under the
 terms of the [Creative Commons Attribution 4.0 International (CC BY 4.0)
-license](https://creativecommons.org/licenses/by/4.0/).
+license](https://creativecommons.org/licenses/by/4.0/). If you use this data,
+you are requested to attribute the data as follows:
+
+> COVID-19 Data Repository by the Center for Systems Science and Engineering
+> (CSSE) at Johns Hopkins University.
+> <https://github.com/CSSEGISandData/COVID-19>

docs/api/covidcast-signals/usa-facts.md

@@ -147,6 +147,7 @@ SECONDARY_FIPS = [   # generated by notebooks/create-mappings.ipynb
 
 ## Source and Licensing
 
-This data set is republished from the USAFacts known cases and deaths datasets,
+This data set is republished from the [USAFacts known cases and deaths
+datasets](https://usafacts.org/visualizations/coronavirus-covid-19-spread-map/),
 under the terms of the [Creative Commons Attribution 4.0 International (CC BY
 4.0) license](https://creativecommons.org/licenses/by/4.0/).

docs/api/covidcast_licensing.md

@@ -6,51 +6,63 @@ nav_order: 2
 
 # Licensing for Delphi's COVID-19 Data Streams
 
+When you use data from Delphi's COVIDcast Epidata API, we ask that you attribute
+the source and follow the terms of the data's licensing agreement. The API
+contains some data streams produced internally by Delphi, which should be
+attributed to Delphi, and some republished from other sources, which should be
+credited. See below for details.
+
 ## Novel Data
 
 These data streams include data produced novelly by Delphi and intentionally and
 openly surfaced by Delphi through this API.
 
+We request you attribute our data as follows:
+
+> Data from Delphi COVIDcast. Obtained via the Delphi Epidata API.
+> <https://cmu-delphi.github.io/delphi-epidata/api/covidcast.html>
+
 ### Creative Commons: Attribution
 
-This data is provided under the terms of the [Creative Commons Attribution
-license](https://creativecommons.org/licenses/by/4.0/). If you use this data,
-you must cite [Delphi's COVIDcast Epidata API](README.md#citing).
+These data sources are provided under the terms of the [Creative Commons
+Attribution license](https://creativecommons.org/licenses/by/4.0/):
 
-COVIDcast signals included:
+* [Doctor Visits](covidcast-signals/doctor-visits.md)
+* [Hospital Admissions](covidcast-signals/hospital-admissions.md)
+* [Indicator Combination](covidcast-signals/indicator-combination.md): signals
+  with names beginning `nmf_*`
+* [Quidel](covidcast-signals/quidel.md)
+* [Symptom Surveys](covidcast-signals/fb-survey.md)
 
-* `doctor-visits`
-* `hospital-admissions`
-* `indicator-combination`:`nmf_*`
-* `quidel`
-* `fb-survey`
+You may use this data for any purpose, provided you attribute us as the original
+source, as shown above.
 
 ### Creative Commons: Attribution-NonCommercial
 
-This data is provided under the terms of the [Creative Commons
+These data sources are provided under the terms of the [Creative Commons
 Attribution-NonCommercial
-license](https://creativecommons.org/licenses/by-nc/4.0/). If you use this data,
-you must cite [Delphi's COVIDcast Epidata API](README.md#citing). You
-may not use this data for commercial purposes.
+license](https://creativecommons.org/licenses/by-nc/4.0/):
 
-COVIDcast signals included:
+* [Change Healthcare](covidcast-signals/chng.md)
 
-* `chng`
+You may not use this data for commercial purposes, but all other uses are
+permitted, provided you attribute us as the original source.
 
 ## Republished Data
 
 These data streams are essentially mirrors of their respective sources, and are
-published here subject to the original license provided by the source. More
-information on the license for each source is available on their respective
-pages.
+published here subject to the original license provided by the source:
+
+* [Google Health Trends](covidcast-signals/ght.md)
+* [Indicator Combination](covidcast-signals/indicator-combination.md): cases and
+  deaths signals
+* [JHU Cases and Deaths](covidcast-signals/jhu-csse.md)
+* [SafeGraph Mobility](covidcast-signals/safegraph.md)
+* [USAFacts Cases and Deaths](covidcast-signals/usafacts.md)
+
+More information on the license for each source is available on their respective
+documentation pages.
 
 If you use the Delphi's COVIDcast Epidata API to access this data, we
 additionally request you [acknowledge us](README.md#citing) in your product or
 publication.
-
-COVIDcast signals included:
-
-* `ght`
-* `jhu-csse`
-* `safegraph`
-* `usa-facts`