Update README.md

ce59c5a4 · Aris Sotiropoulos · 8bf2ce1d · ce59c5a4
Commit ce59c5a4 authored Apr 26, 2018 by Aris Sotiropoulos
--- a/README.md
+++ b/README.md
@@ -2,9 +2,14 @@
 training_material
 ├── 01-Parallel_Programming
 │   ├── MPI
-	   link://workshop1
-	   link://workshop2
-	   link://workshop3
+```
+[workshop1](https://workshops1)
+
+[workshop2](https://workshops2)
+
+[workshop3](https://workshops3)
+
+```
 │   ├── OpenMP
 	   link://workshop1
 	   link://workshop2