Update README.md

README.md

-# Integrating pyiron, TEMMETA, and pySTEM
+# Integrating pyiron, TEMMETA, and pySTEM for segmentation of a TEM image
 [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/materialdigital/pyiron-workflow-TEMImageSegmentation/HEAD)  
 The workflow notebook, `tem.ipynb` creates a pyiron project and subsequently add a job of type `pySTEMTEMJOB` from `tem.py`. The job analyse the provided TEM image, `experiment.emd` for the segmentation.