Add missing commas in tools.json (#753)

Author: t-sommer

static/assets/tools.json

@@ -3729,9 +3729,9 @@
         "vendorURL": "https://www.siemens.com/",
         "description": "Test-based software platform integrating multidisciplinary engineering analysis and simulation models by Siemens Digital Industries Software",
         "features": [],
-	"interfaces": [
-	    "GUI"
-	]
+        "interfaces": [
+            "GUI"
+        ],
         "platforms": [
             "Windows"
         ],
@@ -3755,9 +3755,9 @@
         "vendorURL": "https://www.siemens.com/",
         "description": "Plug-and-play and scalable real-time hardware and software platforms for real-time testing and x-in-the-loop testing by Siemens Digital Industries Software",
         "features": [],
-	"interfaces": [
-	    "GUI"
-	]
+        "interfaces": [
+            "GUI"
+        ],
         "platforms": [
             "Linux"
         ],