Enable html compression

composer.json

@@ -62,7 +62,8 @@
     "typo3-ter/imageoptimizer": "^1.0",
     "typo3-ter/loginlimit": "^1.0",
     "doctrine/dbal": "^2.5",
-    "yohang/calendr": "^2.1"
+    "yohang/calendr": "^2.1",
+    "wyrihaximus/html-compress": "^1.4"
   },
   "scripts": {
     "typo3-cms-scripts": [