Update README.md instructions

README.md

@@ -1,12 +1,16 @@
 # jp2_remediator
 
-<a href="https://github.com/harvard-lts/jp2_remediator/actions/workflows/test.yml"><img src="https://img.shields.io/endpoint?url=https://gist.githubusercontent.com/kimpham54/67d4eba1556653d896d2d36fcb3e5c7c/raw/covbadge.json"></a> <a href="https://github.com/harvard-lts/jp2_remediator/actions/workflows/test.yml"><img src="https://github.com/harvard-lts/jp2_remediator/actions/workflows/test.yml/badge.svg"></a> [![PyPI version](https://badge.fury.io/py/jp2-remediator.svg)](https://badge.fury.io/py/jp2-remediator)
-<!-- pypi badge from https://badge.fury.io/for/py/jp2_remediator -->
-<!-- test and coverage badge from https://github.com/harvard-lts/etd-base-template/wiki -->
+<!-- test and coverage badge from https://github.com/harvard-lts/etd-base-template/wiki --><a href="https://github.com/harvard-lts/jp2_remediator/actions/workflows/test.yml"><img src="https://github.com/harvard-lts/jp2_remediator/actions/workflows/test.yml/badge.svg"></a> <a href="https://github.com/harvard-lts/jp2_remediator/actions/workflows/test.yml"><img src="https://img.shields.io/endpoint?url=https://gist.githubusercontent.com/kimpham54/67d4eba1556653d896d2d36fcb3e5c7c/raw/covbadge.json"></a>
+<!-- pypi badge from https://badge.fury.io/for/py/jp2_remediator --><a href="https://pypi.org/project/jp2_remediator"><img src="https://badge.fury.io/py/jp2-remediator.svg" alt="PyPI version" height="18"></a>
 
-README for the module to validate jp2images
+A Python module to validate jp2 images:
+- reads the bytes of a jp2 file or directory of files or S3 bucket
+- looks for presence of ICC profile
+- maps and validates curv values according to the ISO/IEC 15444-1:2019 (E) and ICC.1:2022 Specifications
+- corrects values where the rTRC/gTRC/bTRC tag size in the Tag table structure (ICC.1:2022 Table 24 tag size) is not the same as the count value (gamma, where n == 1) in the curveType encoding (ICC.1:2022 Table 35, n value)
+- flag and (optionally) log values where the count value n != 1 for future review
 
-https://pypi.org/project/jp2_remediator/
+<a href="https://pypi.org/project/jp2_remediator/">jp2_remediator on PyPI</a>
 
 ## Installation