Merge pull request #2439 from Blaumaus/improvement/swetrix

docs(discover): Added swetrix.com

Author: kamilmysliwiec

content/discover/who-uses.json

@@ -266,6 +266,7 @@
     "https://dyrector.io",
     "https://stijlbreuk.nl",
     "https://polygon-software.ch",
-    "https://bewith.io"
+    "https://bewith.io",
+    "https://swetrix.com"
   ]
 }