Wordpress doesn't show option to add Plugins

[Nils]

Any clues why this is the case in the default setup I followed?

[MacminiOSX]

Hi roundrobin.

You need push to heroku.

heroku git:clone -a

git remote add origin https://github.com/macminiosx/wordpress-ja-pg4wp2-heroku/

and add Plugins into wp-content/plugins/

git add .

git commit -m 'add plugins'

git push heroku master

[Nils]

I just saw the little comment in the README about it. Not being able to write to disk also means that updates of Wordpress need to be done manually right?

[Grégoire Willmann]

Yes exactly.
Each time you want to apply an update, you have to pull it, update it locally and then push it on Heroku.