Update the demo server guide

Update the guide of demo server according to the comments

README.md

@@ -38,7 +38,7 @@ Refer to **[User Guide](docs/user_guide.md)** for more details on how to use Har
 **Developer Group:** Join Harbor developer group: [harbor-dev@googlegroups.com](https://groups.google.com/forum/#!forum/harbor-dev) for discussion on Harbor development and contribution. To subscribe, send an email to [harbor-dev+subscribe@googlegroups.com](mailto:harbor-dev+subscribe@googlegroups.com).  
 **Slack:** Join Harbor's community for discussion and ask questions: [VMware {code}](https://code.vmware.com/join/), channel: [#harbor](https://vmwarecode.slack.com/messages/harbor).
 
-**Preview Server** Harbor provide a preview server with latest Harbor stable build installed. If you want to have a try please refer to **[Preview Server](docs/preview_server.md)** for more details.
+**Demo Server:** Harbor provides a demo environment with the latest Harbor stable build installed. If you want to have a try, please refer to **[Demo Server](docs/demo_server.md)** for more details.
 
 More info on [partners and users](partners.md).
 

docs/ca.crt

@@ -1,34 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIF2TCCA8GgAwIBAgIJAKU7l6THvsA6MA0GCSqGSIb3DQEBCwUAMIGCMQswCQYD
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------END CERTIFICATE-----

docs/demo_server.md

@@ -0,0 +1,20 @@
+# Demo Server Guide
+
+**Important!** 
+ - Please note that this demo server is **ONLY** for your trial of Harbor functionalities. 
+ - Please **DO NOT** upload any sensitive images to this server. 
+ - We will **CLEAN AND RESET** the server every **TWO Days**.
+ - You can only experience the non-admin functionalities on this server. Please follow the **[Installation Guide](installation_guide.md)** to set up a Harbor server to try more advanced features.
+ - Please do not push large images(>100MB) as the server has limited storage.
+
+If you encounter any problems during using the demo server, please contact us at <img alt="email" src="img/harbor_email.png" valigin="middle" height="18"/>.
+
+**Usage**
+
+ - 1> The address of the demo server is [https://demo.goharbor.io](https://demo.goharbor.io)
+ - 2> You can register a new user by yourself
+ - 3> Then you can use the account/password created in step 2 to log in 
+ ```
+ docker login demo.goharbor.io
+ ```
+You can refer to [User Guide](user_guide.md) for more details on how to use Harbor.

docs/preview_server.md

@@ -1,22 +0,0 @@
-**Important!** 
- - Please note that this preview server is **ONLY** for your experience Harbor purpose. 
- - Please **DO NOT** upload any sensitive images to this server. 
- - We will **CLEAN AND RESET** the server every **TWO Days**.
- - You can only experience the none-admin functionalities on this server. Please follow the **[Installation Guide](installation_guide.md)** to setup a Harbor server locally to try more advanced features.
- - Please do not push large images(>100MB) as the server has limited storage.
-
-If you encounter any questions during use the preview server please contact us at harbor@ vmware.com
-
-**Usage**
-
- - 1> The address of the preview server is [https://ec2-52-14-7-203.us-east-2.compute.amazonaws.com](https://ec2-52-14-7-203.us-east-2.compute.amazonaws.com)
- - 2> You can registry a new user by yourself.
- - 3> As this preview server use self-signed certificate, if you want to use docker client to talk with this server. You need to save the CA certificate to you local machine:
-     - Create a folder ```/etc/docker/certs.d/ec2-52-14-7-203.us-east-2.compute.amazonaws.com``` on you local host.  
-     - Save the [ca.crt](ca.crt) to ```/etc/docker/certs.d/ec2-52-14-7-203.us-east-2.compute.amazonaws.com/ca.crt``` to your local host.
- 
- - 4> Then you can use the account/password created in step 2 to login 
- ```
- docker login ec2-52-14-7-203.us-east-2.compute.amazonaws.com
- ```
-You can refer to [User Guide](user_guide.md) for more details on how to use Harbor.