add comment about this fork

README.md

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+# This Fork of [TaxonPages](https://github.com/SpeciesFileGroup/taxonpages)
+
+Is for exploration of TaxonPages for the
+[Purdue Entomological Research Collection (PERC)](https://ag.purdue.edu/department/entm/perc/)
+and hosting via GitHub Pages.
+
+---
+
 # TaxonPages
 
 TaxonPages is a tool to serve taxon pages. At present it draws data from TaxonWorks' API, however we seek to keep the TaxonPages platform agnostic therefor facilitating the modular addition of functionality that may reference data from any biodiversity data-serving API.