Update directpurchase.md

directpurchase.md

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 # Direct purchase
 
+This is the simplest case: you buy XOA with your registered email account on `xen-orchestra.com`.
+
+You can choose the edition you want in two places:
+
+* [the pricing page](https://xen-orchestra.com/#!/pricing)
+* [your account/member zone](https://xen-orchestra.com/#!/member)
+
+
+> You need to be logged to make a purchase. If you don't have any account, please [register here](https://xen-orchestra.com/#!/signup).
+
+From your account zone, click on the Edition you want:
+
+![](member_purchase.png)
+
+Then you need to fill your information:
+
+![](member_purchase2.png)
+
+The default payment method is by **credit card**. But you can also choose the "wiretransfer" tab (with the "banknote/bank icon):
+
+![](member_purchase3.png)