Fix build oversight

build.sh

@@ -7,11 +7,11 @@ cvt () {
 
 mkdir -p out
 
-for i in src/card-treasure*.svg; do
+for i in src/*.svg; do
     echo "=== $i"
     base=$(basename $i .svg)
     cp $i out/
-    cvt $i out/$base.png
+    cvt out/$base.svg
 done
 
 while read name; do