1 files changed, 10 insertions, 2 deletions
diff --git a/update-html.sh b/update-html.sh
index ad27933..79745e4 100755
--- a/update-html.sh
+++ b/update-html.sh
@@ -8,6 +8,8 @@ then
     exit 1
 fi
 
+md2ext=fenced-code-blocks,highlightjs-lang,tables
+
 md2ht() {
     src=$1
     dst=$2
@@ -17,11 +19,17 @@ md2ht() {
         continue
     fi
     echo "$src -> $dst"
+    title=$(sed 's/# //; s/&/\\&/; s_/_\\/_; q' "$src")
+    if [ "${src##*/}" = index.md ]
+    then
+        nav='<a href="..">^ Up</a>'
+    else
+        nav='<a href=".">^ Up</a>'
+    fi
     {
-        title=$(sed 's/# //; s/&/\\&/; q' "$src")
         sed "s/__TITLE__/$title/" html/prelude.html
         echo "<body>"
-        markdown2 "$src" -x fenced-code-blocks,highlightjs-lang,tables
+        sed "1 a $nav" < "$src" | markdown2 -x "$md2ext"
         echo "</body>"
     } > "$dst"
 }