Update post creation script

newpost.sh

@@ -4,8 +4,9 @@ printf "Tags: "
 read tags
 printf "Categories: "
 read categories
-name="_posts/$(date -I)-${title,,}"
-name=${name// /-}.md
+printf "Ref: "
+read ref
+name="_posts/$(date -I)-${ref}.md"
 _date=$(date "+%Y-%m-%d %T %z")
 echo $name
 echo "---" > "$name"
@@ -14,5 +15,7 @@ echo "title:  \"$title\"" >> "$name"
 echo "date:   $_date" >> "$name"
 echo "tags:   $tags" >> "$name"
 echo "categories: $categories" >>"$name"
+echo "lang: en" >>"$name"
+echo "ref:    $ref" >>"$name"
 echo "---" >> "$name"
 vim $name