adapt for data load changes

doc/cheatsheet.md

@@ -541,12 +541,12 @@ pm3 --> data samples <size>
 
 Save samples to file
 ```
-pm3 --> data save <filename>
+pm3 --> data save -f <filename>
 ```
 
 Load samples from file
 ```
-pm3 --> data load <filename>
+pm3 --> data load -f <filename>
 ```
 
 ## Lua Scripts

doc/cloner_notes.md

@@ -72,7 +72,7 @@ lf config s 10000 t 20
 lf t55xx sniff
 
 -- if you have a save trace from before, try
-data load xxxxxxx.pm3
+data load -f xxxxxxx.pm3
 lf t55xx sniff 1
 ```