feat: add to readme

README.md

@@ -2,14 +2,24 @@
 runpodctl is a CLI tool to automate / manage GPU pods for [rundpod.io](https://runpod.io).
 
 # install
-coming soon...
+get latest binary from [releases](releases)
 
 # how to use
 Visit [docs](doc/runpodctl.md) for details of all commands.
 
 First configure the API key. You can get API key from [runpod](https://runpod.io/client/settings).
-`runpodctl config --api-key={key}`
-
+```
+runpodctl config --api-key={key}
+```
+Get all pods:
 ```
 runpodctl get pod
 ```
+Stop a pod:
+```
+runpodctl stop pod {podId}
+```
+Start a pod with bid (only for spot pods). The bid price you set is the price you will pay if not outbid:
+```
+runpodctl start pod {podId} --bid=0.3
+```