### Issue details

Please provide issue details here.
Remember, this is _not_ a place to ask questions. For that, go to http://gitter.im/wallabag/wallabag.

### Environment

* wallabag version (or git revision) that exhibits the issue:
* Last wallabag version that did not exhibit the issue (if applicable):
* php version:
* OS:
* type of hosting (shared or dedicated):
* which storage system you choose at install (SQLite, MySQL/MariaDB or PostgreSQL):

### Steps to reproduce/test case

Please provide necessary steps for reproduction of this issue, or better the
reduced test case (without any external dependencies, if possible).

### Issue details

Please provide issue details here.
Remember, this is _not_ a place to ask questions. For that, go to http://gitter.im/wallabag/wallabag.

### Environment

* wallabag version (or git revision) that exhibits the issue:
* How did you install wallabag? Via `composer create-project` or by downloading the package?
* Last wallabag version that did not exhibit the issue (if applicable):
* php version:
* OS:
* type of hosting (shared or dedicated):
* which storage system you choose at install (SQLite, MySQL/MariaDB or PostgreSQL):

### Steps to reproduce/test case

Please provide necessary steps for reproduction of this issue, or better the
reduced test case (without any external dependencies, if possible).

Add the way to install (package or composer)
Add the way to install (package or composer)