Fix convert.sh, not empty README.md at the beginning.

README.md

@@ -1,7 +1,4 @@
-# Frequently Asked Questions
-# How to
-# Backup and Restore
-# Troubleshooting and Debug
+
 # Frequently Asked Questions
 * [ Why append timestamp in maildir path](./3-faq/./3-faq/why.append.timestamp.in.maildir.path.md)
 # How to

convert.sh

@@ -41,6 +41,7 @@ all_chapter_dirs="$(find . -d 1 -type d -iname '[0-9]*' | sort)"
 #   - title: _title.md
 #   - summary: _summary.md
 echo '' > ${INDEX_MD}
+echo '' > ${README_MD}
 for chapter_dir in ${all_chapter_dirs}; do
     # Get articles
     all_chapter_articles="$(find ${chapter_dir} -depth 1 -type f -iname '[0-9a-z]*.md')"