Describe how to setting a proxy for jcli

doc/README.md

@@ -32,8 +32,23 @@ You can try it:
 
 ## Job Management
 
-TODO.
+You can search a job list using a keyword, like this: `jcli job search input`.
+
+It's very simple to trigger a job. We have the batch mode and interactive mode. This command will finish immediately.
+
+`jcli job build "folderName jobName" -b`
+
+Once you triggered a job, then you can watch the log output by `jcli job log "zjproject zjproject-inputstep55" -w`. This command will always output the log of the last build.
 
 ## Proxy Support
 
-TODO.
\ No newline at end of file
+Jenkins might be stay in behind a firewall. So we cannot connect it directly. You can give `jcli` a proxy setting. It's also very simple to support a proxy setting. You just need to execute: `jcli config edit`. Then find the item which you want to add a proxy. Like the below demo:
+
+```
+- name: dev
+  url: http://192.168.1.10
+  username: admin
+  token: 11132c9ae4b20edbe56ac3e09cb5a3c8c2
+  proxy: http://192.168.10.10:47586
+  proxyAuth: username:password
+```