Update services.md

markdowns/en/services.md

-Services
+Our company offers a wide range of services, of which the categories are listed below
+
+- **VLSI Design**  
+Thanks to our many years of experience gathered while working on our free and open source semiconductor manufacturing process (https://libresilicon.com) we can offer you support all the way from your project idea towards your chip on a PCB:
+
+  + **Danube River**  
+  Perfect for testing new manufacturing design processes
+  (https://gitlab.libresilicon.com/generator-tools/danube-river)
+  + **Standard Cell Generator**
+  In case you have a process but no standard cells yet, we can help you creating a new library and verifying it (https://pdk.libresilicon.com)