Update README.md

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Khuyen Duong
2021-03-20 19:54:22 -07:00
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@@ -10,9 +10,16 @@ This menu aims to give insight on options. options can cause significant share p
## volume <a name="get"></a>
```text
usage: volume -d 'yyyy-mm-dd'
usage: volume -e yyyy-mm-dd
```
or
```text
usage: volume --expiry yyyy-mm-dd
```
Display volume graph for a date. [Source: Yahoo Finance]
* -d : expiration date.
* -e, --expiry : expiration date.