Update README.md

- Data Explorer is once again available (closes #300)

README.md

@@ -27,13 +27,13 @@ Table of contents:
 
 ## Data catalogue
 
-A searchable catalogue of datasets, sorted by province/territory (and city/organization, if applicable), is available in the [Data Explorer](https://ccodwg.github.io/Covid19CanadaArchive-data-explorer/) [**note: the Data Explorer is temporarily unavailable**]. Full details for each dataset, including any notes pertaining to them, are available in the **Search list of datasets** section of the [Data Explorer](https://ccodwg.github.io/Covid19CanadaArchive-data-explorer/). Feature requests and bug reports for the Data Explorer should be made in its [dedicated GitHub repository](https://github.com/ccodwg/Covid19CanadaArchive-data-explorer).
+A searchable catalogue of datasets, sorted by province/territory (and city/organization, if applicable), is available in the [Data Explorer](https://ccodwg.github.io/Covid19CanadaArchive-data-explorer/). Full details for each dataset, including any notes pertaining to them, are available in the **Search list of datasets** section of the [Data Explorer](https://ccodwg.github.io/Covid19CanadaArchive-data-explorer/). Feature requests and bug reports for the Data Explorer should be made in its [dedicated GitHub repository](https://github.com/ccodwg/Covid19CanadaArchive-data-explorer).
 
 A note about data from Quebec: when both French and English data files are available, the French dataset should usually be considered definitive (and in most cases, these files have been captured in the archive for a longer duration).
 
 ## Accessing the data
 
-The easiest way to explore the data in the archive and download individual files is the aforementioned [Data Explorer](https://ccodwg.github.io/Covid19CanadaArchive-data-explorer/) [**note: the Data Explorer is temporarily unavailable**].
+The easiest way to explore the data in the archive and download individual files is the aforementioned [Data Explorer](https://ccodwg.github.io/Covid19CanadaArchive-data-explorer/).
 
 The files in the archive are hosted under the following domain under the domain `https://data.opencovid.ca/archive`. For example, the PHAC Epidemiology Update from November 4, 2020 may be downloaded at the following URL: