Add info and update command examples

README.md

@@ -89,10 +89,10 @@ This can be performed via crunchyroll account email and password.
 $ crunchy login [email protected] password
 ```
 
-or via session id
+or via refresh token / `etp_rt` cookie
 
 ```shell
-$ crunchy login --session-id 8e9gs135defhga790dvrf2i0eris8gts
+$ crunchy login --refresh-token 7578ce50-5712-3gef-b97e-01332d6b588c
 ```
 
 ### Download
@@ -169,6 +169,24 @@ The following flags can be (optional) passed to modify the [archive](#archive) p
 | `-r`  | `--resolution` | The resolution of the video(s). `best` for best resolution, `worst` for worst.                                                                                                                          |
 | `-g`  | `--goroutines` | Sets how many parallel segment downloads should be used.                                                                                                                                                |
 
+
+### Info
+
+The `info` displays some information about the account which is used for the cli.
+
+```shell
+$ crunchy info
+```
+
+### Update
+
+If you want to update your local version of `crunchy-cli`, this command makes this easier.
+It checks if a new version is available and if so, updates itself.
+
+```shell
+$ crunchy update
+```
+
 ### Global flags
 
 These flags you can use across every sub-command: