[JSON] Update release data

json/news.json

@@ -1,4 +1,9 @@
 [
+   {
+      "title":"WPC v4 released",
+      "date":"2022-01-31",
+      "content":"<p>Today we are launching the final version of this project. It fixes the last bugs that could be experienced depending on what setup we have mounted.<\/p><p>Both v3 and v4 of the project manage to generate hardware equal to the real one. All the bugs fixed for this release were also in the real hardware.<\/p>"
+   },
    {
       "title":"WPC v3 released",
       "date":"2022-10-17",