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

docs/commands/transpose.md

@@ -16,3 +16,20 @@ Transposes the table contents so rows become columns and columns become rows.
  -  `--header-row`: treat the first row as column names
  -  `--ignore-titles`: don't transpose the column names into values
 
+## Examples
+
+Transposes the table contents with default column names
+```shell
+> echo [[c1 c2]; [1 2]] | transpose
+```
+
+Transposes the table contents with specified column names
+```shell
+> echo [[c1 c2]; [1 2]] | transpose key val
+```
+
+Transposes the table without column names and specify a new column name
+```shell
+> echo [[c1 c2]; [1 2]] | transpose -i val
+```
+