Add a script that hooks the nostarch build commands together

.gitignore

@@ -3,4 +3,5 @@ book/
 .idea
 .DS_Store
 target
+tmp
 

nostarch.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -eu
+
+mkdir -p tmp
+
+# Get all the markdown files in the src dir,
+ls src/*.md | \
+# except for SUMMARY.md.
+grep -v SUMMARY.md | \
+# Extract just the filename so we can reuse it easily.
+xargs -n 1 basename | \
+# Change all the links from markdown to italicized inline text.
+while IFS= read -r filename; do
+  cargo run --bin link2print < "src/$filename" > "tmp/$filename"
+done
+# Concat the files into the nostarch dir.
+cargo run --bin concat_chapters tmp nostarch