As I understood from the manual installation instructions, it's only necessary to unzip and put everything into the appropriate location:
.../dokuwiki/lib/plugins/wrap
Inside this, are the files and directories:
* _test (directory)
* conf (directory)
* images (directory)
* lang (directory)
* syntax (directory)
* all.css
* print.css
* style.css
* COPYING
* README
* action.php
* helper.php
* example.txt
* plugin.info.txt
* .travis.yml