Update energy.md

docs.it4i/general/energy.md

@@ -12,7 +12,7 @@ Core frequency capping is implemented for the Karolina supercomputer:
 
 |Measure                                                  | Value   |
 |---------------------------------------------------------|---------|
-|Compute nodes **cn[001-720]**<br> CPU core frequency capping | 2.100 GHz |
+|Compute nodes **cn[001-720]**<br> CPU core frequency [capping][3] | 2.100 GHz |
 |Accelerated compute nodes **acn[001-72]**<br> CPU core frequency capping | 2.600 GHz  |
 |Accelerated compute nodes **acn[001-72]**<br> GPU core frequency capping | 1.290 GHz |
 
@@ -45,3 +45,4 @@ None implemented yet.
 
 [1]: https://en.wikipedia.org/wiki/Roofline_model
 [2]: https://people.eecs.berkeley.edu/~kubitron/cs252/handouts/papers/RooflineVyNoYellow.pdf
+[3]: https://slovnik.seznam.cz/preklad/anglicky_cesky/capping