Rework meta and social tag

- Add more twitter meta tag
- Fix existing social tag
- Add link canonical

Merge both existing PR #206 and 216

1 files changed, 11 insertions, 0 deletions

diff --git a/docs/user.md b/docs/user.md
index 0cd7924..f248e3e 100644
--- a/docs/user.md
+++ b/docs/user.md
@@ -33,6 +33,7 @@ If you want to report a bug or ask a question, [create an issue](https://github.
 - [Integrated services configuration](#integrated-services-configuration)
     * [Google Analytics](#google-analytics)
         * [Exclude hostname (localhost) while writing articles](#exclude-hostname-localhost-while-writing-articles)
+    * [Social cards](#social-cards)
 - [Quick & easy modifications](#quick--easy-modifications)  
     * [Prerequisites](#prerequisites)
     * [Change global style](#change-global-style)
@@ -495,6 +496,16 @@ Follow these steps, to add new filter :
 7. Select **Custom filter**, **Filter Field** : `Hostname`, **Filter Pattern** :  `(.*?localhost.*?)`
 8. Click on **Save** button
 
+### Social cards
+
+You can configure how links to your site will appear in Twitter and/or Facebook. There are several ways of setting up card parameters:
+
+* **Title**: if in a page with title (like a post) it will use post title, otherwise, will use site title.
+* **Description**: will use article summary, if it does not exist, will use site description.
+* **Site author** (twitter only): will use the value of `twitter` field on ``[[params.Author]]`` section of your `config.toml` file.
+* **Content author** (twitter only): will use the value of the field `twitter` in your document header. If not specified, will use the **Site author** field value.
+* **Image**: will use the following fields in order, if one is not available, the next will be taken: thumbnail of document, cover of document, gallery images, gravatar email then author picture, .
+
 ## Quick & easy modifications
 
 ### Prerequisites