Update #4455, Regenerate all commands' docs (#4557)

docs/commands/split_row.md

@@ -14,3 +14,15 @@ splits contents over multiple rows via the separator.
 
  -  `separator`: the character that denotes what separates rows
 
+## Examples
+
+Split a string into rows of char
+```shell
+> echo 'abc' | split row ''
+```
+
+Split a string into rows by the specified separator
+```shell
+> echo 'a--b--c' | split row '--'
+```
+