Move from gitbook to docusaurus - backport (#10970) (#11029)

* Move v1.2 to docusaurus

* Fixup travis conifg

Co-authored-by: publish-docs.sh <maintainers@solana.com>

docs/convert-ascii-to-svg.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+# Convert .bob and .msc files in docs/art to .svg files located where the
+# site build will find them.
+
+set -e
+
+cd "$(dirname "$0")"
+output_dir=static/img
+
+mkdir -p "$output_dir"
+
+while read -r bob_file; do
+  svg_file=$(basename "${bob_file%.*}".svg)
+  svgbob "$bob_file" --output "$output_dir/$svg_file"
+done < <(find art/*.bob)
+
+while read -r msc_file; do
+  svg_file=$(basename "${msc_file%.*}".svg)
+  mscgen -T svg -o "$output_dir/$svg_file" -i "$msc_file"
+done < <(find art/*.msc)