Update ch01.asciidoc (#24)

* Update ch01.asciidoc

Updated the merchant example and put it into the right place.  Thanks @RicardoM17 for your contributions!   I've replaced the names, as I think the Alice / Bob notation brings some baggage with it that we probably don't need.  (Or if we do want to use it, we should re-apply the names in correct order at the end of the writing process.)

* Update ch01.asciidoc

Corrected Typo in customers

* removed the client side demanding fixed / low fees

ch01.asciidoc

@@ -72,6 +72,14 @@ They usually pay fees for using point of sales services and several payment meth
 This directly decreases the margin on which merchants operate.
 A merchant will be happy to get an additional payment method which is virtually for free to the merchant.
 
+An example of a merchant is Silke. 
+Silke runs a small coffee shop in an upmarket street in Berlin. 
+She knows about Bitcoin and wants to accept it in her shop, but has been reluctant to do so because she knows that Bitcoin payments take approx. 10 minutes to be confirmed into her account. 
+However with the Lightning Network, she knows that her regular clients, such as Joerg can pay for their coffee at her shop, quickly and with negligible fees. 
+Additionally, by using the Lightning Network, Silke has all funds deposited instantly to her wallet and with usually smaller fees on her side as well. 
+Ultimately this allows her to provide a better service or to offer better pricing for her products.
+
+
 === Getting Started