update readme

README.md

-## Welcome to the EM-Glossary
+# Welcome to the EM-Glossary
  :bell: We work together to harmonize terminology in electron microscopy. :microscope: :file_folder:
 
 This is where the EM_Glossary OWL artefact is build, documented, released and maintained. This domain-level artefact contains terminology which was harmonized through a community process documented in our [communty repository](https://codebase.helmholtz.cloud/em_glossary/em_glossary). The terminology can be easiliy explored on our [webpage](emglossary.helmholtz-metadaten.de) and is intended to be adopted and integrated into application level semantics and metadata (See bellow).
@@ -28,6 +28,6 @@ This work was supported by the [Helmholtz Metadata Collaboration (HMC)](www.helm
  Forschungsgemeinschaft (DFGs, German Research Foundation) under the National Research Data Infrastructure – NFDI 38/1 – project number 460247524.
 
 <img src="https://github.com/Materials-Data-Science-and-Informatics/Logos/blob/main/HMC/HMC_Logo_M.png?raw=true" alt="HMC" width="300"/> 
-<img src="https://nfdi-matwerk.de/fileadmin/_processed_/8/3/csm_Logo_NFDI-MatWerk-1000px__1__d04d7a77da.png" alt="MatWErk" width="200"/> 
+<img src="https://nfdi-matwerk.de/fileadmin/_processed_/8/3/csm_Logo_NFDI-MatWerk-1000px__1__d04d7a77da.png" alt="MatWErk" width="100"/> 
 <img src="https://github.com/Materials-Data-Science-and-Informatics/Logos/blob/main/FZJ/Logo_FZ_Juelich_412x120_rgb_jpg.jpg?raw=true" alt="FZJ" width="200" />
 <img src="https://www.helmholtz-berlin.de/wp-content/themes/hzb-interim-website/dist/assets/logo-8a64f3c8.svg" width="300" alt="HZB" style="float:left"/>