Fix the format table formatting.
@@ -29,7 +29,7 @@ The `--prefix VALUE` option supplies a prefix to the value in the output file.
The `--format xxx` option selects an output format:
Format | Description
-====== | ===========
+---------------------- | -----------
`--format edge` | This format creates a KGTK edge file as its output, as described above. This is the default output format.
`--format node` | This format creates a KGTK node file as its output. The value (prefixed if requested) appears in the `id` column of the output file, and new columns (prefixed) are created for each unique value found in the specified column in the input file.
`--format node-counts` | This format creates a KGTK node file with two columns. The `id` column will contain the (optionally prefixed) unique values, while the second column (named by `--label`) will contain the count.
