Adds the ability to convert to html

Issue #14

I still want, at some point, to add to other formats but this is fine
for now.

The tool uses pandoc to do the conversion from md to html

A sample template (without any styling) is provided. This can be
overwritten in $HOME/.config/kb/templates/main.html or in the
knowledgebase directory under `templates`.

inc/to-html

@@ -31,6 +31,30 @@ generate-html-toc(){
 
 to-html(){
 	local destination="$1"
-	local toc="$(generate-html-toc)"
-	echo "$toc"
+	local preTemplate="/usr/local/share/kb/templates/main.html"
+	local tocFile="$(mktemp)"
+	local templateFile="$(mktemp)"
+	generate-html-toc > "$tocFile"
+
+	# If there is a template in the users .local/share directory, use that
+	[ -e "${XDG_CONFIG_HOME:-$HOME/.config}/kb/templates/main.html" ] &&
+		preTemplate="${XDG_CONFIG_HOME:-$HOME/.config}/kb/templates/main.html"
+
+	# If there is a template in the data directory, use that
+	[ -e "${dataDir}templates/main.html" ] &&
+		preTemplate="${dataDir}templates/main.html"
+
+
+	sed "s#\#TOC\##\${ $tocFile() }#" "$preTemplate" > "$templateFile"
+
+
+	find "$dataDir" -name "*.md" | while read file; do
+		local newFile="${file##*/}"
+		newFile="${newFile/.md/.html}"
+		sed -E 's/\.md( *)\)/.html\1\)/' "$file" |
+		pandoc -f markdown -t html --template "$templateFile" > "$destination/$newFile"
+	done
+
+	rm "$tocFile" "$templateFile"
+
 }