Update README.md

Author: hackermd

README.md

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 # DICOM Microscopy Viewer
 Vanilla JS library for web-based visualization of [DICOM VL Whole Slide Microscopy Image](http://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_A.32.8.html) datasets.
-The library only depends on [Openlayers](http://openlayers.org/) for rendering pyramid images and retrieves pyramid tiles (image frames) using [DICOMweb WADO-RS](https://www.dicomstandard.org/dicomweb/retrieve-wado-rs-and-wado-uri/). 
+The library relies on [Openlayers](http://openlayers.org/) for rendering pyramid images and retrieves pyramid tiles (image frames) using [DICOMweb WADO-RS](https://www.dicomstandard.org/dicomweb/retrieve-wado-rs-and-wado-uri/). 
 
 
 ## Installation