finally figured out yanking on all oses

vim/cheetsheet.md

@@ -4,6 +4,19 @@ Generel stuff that I need to get into my muscle memory.
 
 * `CTRL-W [hjkl]` - switch to window left, above, below, right
 
+## yanking
+* `"ay` - replace content of register 'a'
+* `"Ay` - append to content of register 'a'
+* `y` - will put stuff in the default register `""` and `"0`
+* `d` - will put stuff just in the default register `""` - so `"0p` will still
+  paste the last yank
+* `3yy` - yank next three lines
+* `CTRL-r +` - paste register '+' in insert mode
+* `"*` - linux the PRIMARY clipboard, system clipboard on other operating
+  systems
+* `"+` - the system clipboard on all operating systems
+
+
 ## unimpared
 * `]b` - :bnext
 * `[b` - :bprevious