Fixed a problem that prevents from adding a snippet when there are no items in the user snippet file.
Fixed some misspellings.
0.2.3
Fixed a problem that indents are not replaced by \t.
0.2.4
If the selected text is empty when "Add selection to user snippets" is executed, the snippet file will be opened, but no snippets will be added. So you can now view and edit the snippet file easily.