diff --git a/build_html.sh b/build_html.sh
index e6e8446..20590a4 100644
--- a/build_html.sh
+++ b/build_html.sh
@@ -6,4 +6,5 @@ rm -rf _build/rst _build/html
 d2lbook build rst
 cp static/frontpage.html _build/rst/
 d2lbook build html
-cp -r static/image/* _build/html/_images/
\ No newline at end of file
+cp -r static/image/* _build/html/_images/
+python3 tools/format_tables.py
\ No newline at end of file
diff --git a/config.ini b/config.ini
index 26264a6..9866d7b 100644
--- a/config.ini
+++ b/config.ini
@@ -74,6 +74,7 @@ sphinx_configs = numfig_format = {'figure': '图%%s', 'table': '表%%s', 'code-b
 # items: name, URL, and a fontawesome icon
 # (https://fontawesome.com/icons?d=gallery). Items are separated by commas.
 header_links = GitHub, https://github.com/openmlsys/openmlsys-zh, fab fa-github,
+               English, https://openmlsys.github.io/html-en, fas fa-external-link-alt
 
 favicon = static/favicon.png