Add command to swap subject and type of course

Guides/ics-vim.md

@@ -63,3 +63,17 @@ After :
 SUMMARY:TD,EPS
 SUMMARY:TD,ALL
 ```
+
+## Swap type of course and subject
+
+Command vim : `%s/SUMMARY:\(.*\),\(.*\)/SUMMARY:\2,\1/c`
+
+Before :
+```
+SUMMARY:TD,EPS
+```
+
+After :
+```
+SUMMARY:EPS,TD
+```