Edit python-data/README.md

Author: nf679

python-data/README.md

@@ -17,4 +17,4 @@ Presentation material is used from the links listed below:
 6. [numpy](https://numpy.org/doc/stable/user/quickstart.html)
 7. [NetCDF4](https://unidata.github.io/netcdf4-python/#tutorial)
 
-Each of these has an equivalent notebook in the [exercises](/exercises) folder with the solutions in the [solutions](/solutions) folder. 
+Each of these has an equivalent notebook in the [exercises](./exercises) folder with the solutions in the [solutions](./solutions) folder.