docs(autok3s): fix README.md missing flags

Signed-off-by: Jason-ZW <zhenyang@rancher.com>

README.md

@@ -86,6 +86,8 @@ sudo autok3s join \
     --security-group <security-group id> \
     --token <k3s token> \
     --ip <k3s master/lb ip> \
+    --access-key <access-key> \
+    --access-secret <access-secret> \
     --worker 1
 ```
 
@@ -108,23 +110,29 @@ sudo autok3s ... \
 sudo autok3s start \
     --provider alibaba \
     --region <region> \
-    --name <cluster name>
+    --name <cluster name> \
+    --access-key <access-key> \
+    --access-secret <access-secret>
 ```
 
 ### Stop K3s Cluster
 ```bash
 sudo autok3s stop \
     --provider alibaba \
     --region <region> \
-    --name <cluster name>
+    --name <cluster name> \
+    --access-key <access-key> \
+    --access-secret <access-secret>
 ```
 
 ### Delete K3s Cluster
 ```bash
 sudo autok3s delete \
     --provider alibaba \
     --region <region> \
-    --name <cluster name>
+    --name <cluster name> \
+    --access-key <access-key> \
+    --access-secret <access-secret>
 ```
 
 ### List K3s Clusters