docs: Adding script to pull useful docs from LiteX BuildEnv's wiki.

doc/pull-docs-from-buildenv-wiki.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# Soft-CPU - Description about supported Soft-CPUs.
+# BIOS     - Information about the BIOS and what it is used for.
+# Firmware - Information about compatible Firmware.
+
+for page in Soft-CPU BIOS Firmware; do
+	curl https://raw.githubusercontent.com/wiki/timvideos/litex-buildenv/${page}.md > ${page}.md
+	git add ${page}.md
+done
+
+GIT_MSG=$(tempfile) || exit
+trap "rm -f -- '$GIT_MSG'" EXIT
+git commit --message "Updating documents from LiteX BuildEnv Wiki"