Fix the way HTTP/2 is written

Author: tgalopin

symfony/webpack-encore-bundle/1.6/config/packages/webpack_encore.yaml

@@ -7,7 +7,7 @@ webpack_encore:
     # if using Encore.enableIntegrityHashes() and need the crossorigin attribute (default: false, or use 'anonymous' or 'use-credentials')
     # crossorigin: 'anonymous'
 
-    # preload all rendered script and link tags automatically via the http2 Link header
+    # preload all rendered script and link tags automatically via the HTTP/2 Link header
     # preload: true
 
     # Throw an exception if the entrypoints.json file is missing or an entry is missing from the data