Update README

README.md

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+A simple library to validate different TEI URI syntaxes
+
+TEI is a Transparency Exchange Identifier. See
+https://github.com/CycloneDX/transparency-exchange-api/tree/main/discovery
+for details.
+
+Created by Olle E. Johansson, Edvina AB, [email protected]
+
+
 References
 
 - URNParse https://pypi.org/project/urnparse/