Squashed '.zsh/zsh-syntax-highlighting/' content from commit 5320f1e

git-subtree-dir: .zsh/zsh-syntax-highlighting
git-subtree-split: 5320f1e18d5782e29a6637937e37a3aecf9327bb
Merge commit 'dc4b623e677bfaaf7e3cf2da8cb2460fbcfbb9b4' as '.zsh/zsh-syntax-highlighting'