add myst parser to use mermaid lexer with sphinx

Author: JessicaS11

_config.yml

@@ -63,6 +63,8 @@ bibtex_bibfiles:
 # Advanced configuration
 sphinx:
   extra_extensions:
+    # required for mermaid
+    - myst-parser
     # 404 not found page
     - notfound.extension
     # maintain old paths and redirect them (so google results dont go to 404)

advanced/backends/backends.md

@@ -93,14 +93,14 @@ Follow the tutorials on creating a new backend for binary files.
 ### Links to internal backends
 
 - [netcdf4](https://pypi.org/project/netCDF4/) - netCDF4
-- [scipy]() - netCDF3
+- [scipy]https://scipy.org/) - netCDF3
 - [zarr](https://pypi.org/project/zarr/) - Zarr
-- [pydap](https://www.pydap.org/) - Data Access Protocol (DAP/DODS/OPeNDAP)
+- [pydap](https://pydap.github.io/pydap/) - Data Access Protocol (DAP/DODS/OPeNDAP)
 
 ### Links to external backends (not comprehensive)
 
 - [cfgrib](https://github.com/ecmwf/cfgrib) - GRIB
 - [tiledb](https://github.com/TileDB-Inc/TileDB-CF-Py) - TileDB
 - [rioxarray](https://corteva.github.io/rioxarray/stable/) - GeoTIFF, JPEG-2000, ESRI-hdr, etc (via GDAL)
 - [xarray-sentinel](https://github.com/bopen/xarray-sentinel) - Sentinel-1 SAFE
-- ...
+- ...