Added some badges to the README.

Author: LTLA

.github/workflows/run-tests.yaml

@@ -1,7 +1,7 @@
 # This workflow will install Python dependencies, run tests and lint with a single version of Python
 # For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
 
-name: Test the library
+name: Unit tests
 
 on:
   push:

README.md

@@ -12,8 +12,12 @@
 
 # Python client for the gobbler service
 
-Pretty much as it says on the tin; provides an Python client for the [Gobbler service](https://github.com/ArtifactDB/gobbler),
-as a sister package to the corresponding [R client](https://github.com/ArtifactDB/gobbler-R).
+![Unit tests](https://github.com/ArtifactDB/gobbler-py/actions/workflows/run-tests.yaml/badge.svg)
+![Documentation](https://github.com/ArtifactDB/gobbler-py/actions/workflows/build-docs.yaml/badge.svg)
+
+Pretty much as it says on the tin; provides an Python client for the [Gobbler service](https://github.com/ArtifactDB/gobbler).
+It is assumed that the users of this package and the Gobbler service itself are accessing the same shared filesystem;
+this is typically the case for high-performance computing (HPC) clusters in scientific institutions.
 To demonstrate, let's spin up a mock Gobbler instance:
 
 ```python