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README.md

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+# Newline Linter
+
+> **3.206 Line**
+> A sequence of zero or more non- <newline> characters plus a terminating <newline> character.
+
+## GitHub Action
+
+### Inputs
+
+* `exclusion_pattern`
+    * Optional extended-`grep`-compatible pattern of filenames to exclude.
+
+### Example
+
+```yml
+- name: Lint newlines
+  uses: fionn/newline-linter@master
+  with:
+    exclusion_pattern: not_text.jpeg
+```
+
+## Git Subcommand
+
+Install `git-no-newline` in your path and run
+```shell
+$ git no-newline
+```
+in a Git repository to list non-binary files that do not terminate in a newline.