diff --git a/Makefile b/Makefile
index 76c2828..664efee 100644
--- a/Makefile
+++ b/Makefile
@@ -74,6 +74,8 @@ gh-pages:
 	cd ../quiver-worktree
 	# Reset the GitHub Pages branch so that it contains the release source code.
 	git reset --hard $$RELEASE
+	# Copy KaTeX into the main release directory.
+	cp -r $$KATEX .
 
 	# Merge the development branch into the `dev/` directory.
 	git merge -s ours --no-commit $$DEV
diff --git a/README.md b/README.md
index b3013f9..10bdf3f 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ Object placement is based on a flexible grid that resizes according to the size
 
 There is a wide range of composable arrow styles.
 
-[![Colours](screenshots/colour-picker.png "Colours")](https://q.uiver.app/?q=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)
+[![Colours](screenshots/colour-picker.png "Colours")](https://q.uiver.app/?q=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)
 
 And full use of colour for labels and arrows.