Update documentation

.github/workflows/tests.yml

@@ -1,7 +1,10 @@
-name: Test CI
+name: Build status
 
 on:
   pull_request:
+  push:
+    branches:
+      'main'
 
 jobs:
   tests:

README.md

@@ -1,5 +1,10 @@
 ## PyMca-Zocalo: PyMca components for automated data processing with Zocalo at Diamond Light Source
+Build Status: [![Build Status](https://github.com/DiamondLightSource/python-zocalo-pymca/actions/workflows/tests.yml/badge.svg?branch=main)]
+
+Standalone repository containing the pymca fitter zocalo service, that automates the fitting of XRF spectra to identify elements present in a sample, along with their relative abundance.
+
+The service is deployed in the zocalo namespace kubernetes deployment that is managed in [container-tools](https://gitlab.diamond.ac.uk/scisoft/container-tools). The container image is created via a GitHub action in this repository, which automatically creates and and pushes an image with a unique tag when commits are made to the main branch. 
+
 
-Build Status: [![Build Status](https://travis-ci.org/DiamondLightSource/python-zocalo-pymca.svg?branch=master)](https://travis-ci.org/DiamondLightSource/python-zocalo-pymca)