Add examplesURL for TwinCAT (#657)

Author: Tc-KGu

static/assets/tools.json

@@ -678,6 +678,7 @@
         "logo": "beckhoff.png",
         "vendor": "Beckhoff",
         "vendorURL": "https://www.beckhoff.com/en-en/products/automation/twincat/",
+	"examplesURL": "https://github.com/Beckhoff/TE142x---FMU-Samples",	    
         "description": "The TwinCAT software system turns almost any PC-based system into a real-time control with multiple PLC, NC, CNC and/or robotics runtime systems.",
         "features": [],
         "platforms": [