Rewrite document for packaging
Rewrite document for packaging

mattermost/desktop,jnugh/desktop,mattermost/desktop,mattermost/desktop,jnugh/desktop,yuya-oc/desktop,mattermost/desktop,yuya-oc/electron-mattermost,yuya-oc/electron-mattermost,yuya-oc/desktop,yuya-oc/desktop,mattermost/desktop,yuya-oc/electron-mattermost,jnugh/desktop