Link to Chroma-using pager in README.md

Since moar is a useful app that showcases Chroma's highlighting
capabilities, it makes sense to mention moar in the Command-line
interface section of the README.

README.md

@@ -245,6 +245,9 @@ For a quick overview of the available styles and how they look, check out the [C
 
 ## Command-line interface
 
+[`moar`](https://github.com/walles/moar?tab=readme-ov-file) is a full-blown
+pager that colorizes its input using Chroma.
+
 A command-line interface to Chroma is included.
 
 Binaries are available to install from [the releases page](https://github.com/alecthomas/chroma/releases).