feat: update README title

README.md

-EFEHR | QGIS Web Client 2 (QWC2)
+SEISMO | QGIS Web Client 2 (QWC2)
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 QGIS Web Client 2 (QWC2) is a modular next generation responsive web client for QGIS Server, built with ReactJS and OpenLayers. This repository contains the SEISMO configuration of QWC2.