docs: correct example parsing in README (#39)

helper function to encode hierarchical, composed IRI (#38)

fix URL/IRI interoperability in JSON (#37)

Enhance api with hierarchical primitives (#36)

Enhance api with hierarchical primitives (#36)

support URN type (#35)

support URN type (#35)

Merge pull request #34 from fogfish/fix-encoding

Align IRI encoding with RFC 3987

Merge pull request #32 from fogfish/support-percent-encoding-normaliz…

…ation

Support percent-encoding normalisation

Merge pull request #30 from fogfish/inverse-construct

construct CURIE from URL with prefix materialization