Fix HTML/XHTML in makefile

makefile

@@ -6,7 +6,7 @@ RSYNC_DEPLOY=rsync -rzp --delete
 SASS_SRC=$(wildcard src/style/*.scss)
 #SASS_OUT=$(patsubst src/style/%,out/style/%,$(patsubst %.sass,%.css,$(SASS_SRC)))
 
-HTML_SRC=$(wildcard src/*.xhtml)
+HTML_SRC=$(wildcard src/*.html)
 HTML_OUT=$(patsubst src/%,out/%,$(HTML_SRC))
 
 all: out/style/font out/katze out/mann out/res out/pony out/style/stylesheet.css $(HTML_OUT)
@@ -26,8 +26,8 @@ out/pony: src/pony
 out/res: src/res
 	$(RSYNC_COPY) src/res out
 
-out/%.xhtml: src/%.xhtml
-	cp src/*.xhtml out
+out/%.html: src/%.html
+	cp src/*.html out
 
 out/style/stylesheet.css: $(SASS_SRC) | out/style
 	$(SASS) src/style/stylesheet.scss $@