Move comparison.sh benchmark script to documentation

tests/benchmarks/comparison.sh

@@ -1,33 +0,0 @@
-#!/usr/bin/env bash
-
-cd "$(dirname "${BASH_SOURCE[0]}")" || exit
-
-if ! command -v hyperfine > /dev/null 2>&1; then
-    echo "'hyperfine' does not seem to be installed."
-    echo "You can get it here: https://github.com/sharkdp/hyperfine"
-    exit 1
-fi
-
-SRC="test-src/jquery-3.3.1.js"
-
-
-cmd_bat="bat --style=full --color=always --paging=never '$SRC'"
-cmd_bat_simple="bat --plain --wrap=never --tabs=0 --color=always --paging=never '$SRC'"
-cmd_pygmentize="pygmentize -g '$SRC'"
-cmd_highlight="highlight -O truecolor '$SRC'"
-cmd_ccat="ccat --color=always '$SRC'"
-cmd_source_highlight="source-highlight --failsafe --infer-lang -f esc -i '$SRC'"
-cmd_hicat="hicat '$SRC'"
-cmd_coderay="coderay '$SRC'"
-cmd_rouge="rougify '$SRC'"
-
-hyperfine --warmup 3 \
-    "$cmd_bat" \
-    "$cmd_bat_simple" \
-    "$cmd_pygmentize" \
-    "$cmd_highlight" \
-    "$cmd_ccat" \
-    "$cmd_source_highlight" \
-    "$cmd_hicat" \
-    "$cmd_coderay" \
-    "$cmd_rouge" \