feat: add get_web_page (#11)

sh/get_web_page.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+set -e
+
+# @describe Fetches the HTML content from a specified webpage URL and converts it to Markdown format.
+# Use it to answer user questions that require up-to-date content from web pages.
+# @meta require-tools curl,pandoc,sed
+# @option --url! The URL to scrape.
+
+main() {
+  # span and div tags are dropped from the HTML https://pandoc.org/MANUAL.html#raw-htmltex and sed removes any inline SVG images in image tags from the Markdown content.
+  curl -fsSL "$argc_url" | pandoc -f html-native_divs-native_spans -t gfm-raw_html | sed -E 's/!\[.*?\]\((data:image\/svg\+xml[^)]+)\)//g'
+}
+
+eval "$(argc --argc-eval "$0" "$@")"