docs: updated to new users-wall in powered-by.md

README.md

@@ -40,7 +40,7 @@ The technical architecture of Apache APISIX:
 
 - Mailing List: Mail to dev-subscribe@apisix.apache.org, follow the reply to subscribe the mailing list.
 - QQ Group - 578997126
-- [Slack Workspace](https://join.slack.com/t/the-asf/shared_invite/zt-lcbw4olf-_5s17RLU0Cx8xTvj2bNbjg) - join `#apisix` on our Slack to meet the team and ask questions
+- [Slack Workspace](https://join.slack.com/t/the-asf/shared_invite/zt-mrougyeu-2aG7BnFaV0VnAT9_JIUVaA) - join `#apisix` on our Slack to meet the team and ask questions
 - ![Twitter Follow](https://img.shields.io/twitter/follow/ApacheAPISIX?style=social) - follow and interact with us using hashtag `#ApacheAPISIX`
 - [bilibili video](https://space.bilibili.com/551921247)
 - **Good first issues**:
@@ -321,7 +321,7 @@ A wide variety of companies and organizations use APISIX for research, productio
 
 <img src="https://user-images.githubusercontent.com/40708551/109484046-f7c4e280-7aa5-11eb-9d71-aab90830773a.png" width="725" height="1700" />
 
-Users are encouraged to add themselves to the [Powered By](docs/en/latest/powered-by.md) page.
+Users are encouraged to add themselves to the [Powered By](powered-by.md) page.
 
 ## Landscape
 

docs/en/latest/plugins/hmac-auth.md

@@ -73,6 +73,12 @@ curl http://127.0.0.1:9080/apisix/admin/consumers -H 'X-API-KEY: edd1c9f034335f1
 
 The default `keep_headers` is false and `encode_uri_params` is true.
 
+You can visit the dashboard to complete the above operations through the web interface, first add a consumer:
+![](../../../assets/images/plugin/hmac-auth-1.png)
+
+Then add the hmac-auth plugin to the consumer page:
+![](../../../assets/images/plugin/hmac-auth-2.png)
+
 2. add a Route or add a Service, and enable the `hmac-auth` plugin
 
 ```shell

powered-by.md

@@ -71,7 +71,7 @@ Users are encouraged to add themselves to this page, [issue](https://github.com/
 1. <a href="https://www.zuzuche.com/" rel="nofollow">zuzuche 租租车</a>
 1. <a href="https://www.zybang.com/" rel="nofollow">zybang 作业帮</a>
 
-<img src="https://raw.githubusercontent.com/iresty/iresty.com/master/user-wall.jpg" width="900" height="500" />
+<img src="https://user-images.githubusercontent.com/40708551/109484046-f7c4e280-7aa5-11eb-9d71-aab90830773a.png" width="725" height="1700" />
 
 ## User Cases