Missing PET ontology term in documentation of bioimage modalities

[luiskuhn]

etl-scripts/README.md

Line 422 in 5938535

`IMAGING_MODALITY`| Ontology Identifier for the imaging modality, currently from the [NCI Thesaurus](https://ncit.nci.nih.gov/ncitbrowser/pages/home.jsf?version=21.02d). The [EBI-OLS](https://www.ebi.ac.uk/ols4/ontologies/ncit) can be used to search for NCIT terms, the following values are valid examples: <br> `NCIT_C16855` (Scanning Electron Microscopy) <br> `NCIT_C18216` (Transmission Electron Microscopy) <br> `NCIT_C18113` (Cryo-Electron Microscopy) <br> `NCIT_C17995` (Light Microscopy) <br> `NCIT_C16856` (Fluorescence Microscopy) <br> `NCIT_C17753` (Confocal Microscopy) <br> `NCIT_C23011` (Hematoxylin and Eosin Staining Method) <br> `NCIT_C23020` (Immunohistochemistry Staining Method) <br> `NCIT_C181928` (Multiplexed Immunofluorescence) <br> `NCIT_C16809` (Magnetic Resonance Imaging) <br> `NCIT_C17204` (Computed Tomography)

[sven1103]

I added it in openBIS, you are good to go to describe it :)

NCIT_C17007 => PET