Update README.md

Closes LOS-1090

README.md

-# Linux Survival Kit
+# Linux Survival Kit Guide
+
+Here you can find the two websites that provide the information/documentation for the LSKG.
+
+Available at LMS: https://lms.cern.ch/ekp/servlet/ekp?PX=N&TEACHREVIEW=N&PTX=&CID=EKP000043411&TX=FORMAT1&LANGUAGE_TAG=en&DECORATEPAGE=N
+
+Or at https://linux-training.web.cern.ch/