Update with the task assignment section

README.md

@@ -1,8 +1,110 @@
-## Yet Another Checkout System (YACS) based of Ruby
+# Yet Another Checkout System (YACS) based of Ruby
 
 This Ruby code simmulates a checkout register at a grocery store.
 
-# Class Diagram
+## Task Assignment
+
+The Farmer’s Market
+
+We sell the following four products at the local farmer’s market every week.
+
+```
++--------------|--------------|---------+
+| Product Code |     Name     |  Price  |
++--------------|--------------|---------+
+|     CH1      |   Chai       |  $3.11  |
+|     AP1      |   Apples     |  $6.00  |
+|     CF1      |   Coffee     | $11.23  |
+|     MK1      |   Milk       |  $4.75  |
+|     OM1      |   Oatmeal    |  $3.69  |
++--------------|--------------|---------+
+```
+
+This week, we’re celebrating our one year anniversary and would like to offer the
+following specials.  To do so, we’ll need to update our checkout system to apply
+the following rules.
+
+1. BOGO -- Buy-One-Get-One-Free Special on Coffee. (Unlimited)
+2. APPL -- If you buy 3 or more bags of Apples, the price drops to $4.50.
+3. CHMK -- Purchase a box of Chai and get milk free. (Limit 1)
+4. APOM -- Purchase a bag of Oatmeal and get 50% off a bag of Apples
+
+At any time, we should be able to print out the current register to see what the state of
+the basket is.  This should include the price and the applied discount or special, if any.
+
+For example, given the following basket:
+
+CH1, AP1, AP1, AP1, MK1
+
+After CH1 and AP1, it should yield:
+
+```
+Item                          Price
+----                          -----
+CH1                            3.11
+AP1                            6.00
+-----------------------------------
+                               9.11
+```
+After the entire basket is added, it would yield:
+
+```
+Item                          Price
+----                          -----
+CH1                            3.11
+AP1                            6.00
+            APPL              -1.50
+AP1                            6.00
+            APPL              -1.50
+AP1                            6.00
+            APPl              -1.50
+MK1                            4.75
+            CHMK              -4.75
+-----------------------------------
+                              16.61
+```
+
+Use Python, Ruby, Javascript, or Golang to implement a checkout system that allows us to fulfill the above requirements. Submit the code via a Dockerfile which builds a Docker container to run the code sample in. A readme should be included which describes how to execute the code. The source code needs to be publicly accessible for code review.
+
+Here’s some test data for your specs:
+
+```
+Basket: CH1, AP1, CF1, MK1
+Total price expected: $20.34
+```
+
+```
+Basket: MK1, AP1
+Total price expected: $10.75
+```
+
+```
+Basket: CF1, CF1
+Total price expected: $11.23
+```
+
+```
+Basket: AP1, AP1, CH1, AP1
+Total price expected: $16.61
+```
+
+-----
+
+The scope of this project is meant to be fairly narrow, but there are a lot of details to consider.
+We’re looking for the following things when reviewing your code:
+
+1. Design
+2. Testing
+3. Accuracy
+4. Flexibility
+5. Containerization
+
+---
+---
+
+## Solution in Ruby
+
+### Class Diagram
 
 The below Class Diagrams describes all the implemented classes and their relationships.
 
@@ -12,7 +114,7 @@ There are 2 ways to try out the code sample with Docker or without Docker.
 
 **Note**: This code was tested with Ruby _2.4.5_ and _2.6.5_
 
-# 1. Run code sample with Docker
+### 1. Run code sample with Docker
 
 Install [Docker](https://hub.docker.com/?overlay=onboarding) if you don't have it yet.
 ```
@@ -22,7 +124,7 @@ docker build -t developertogo/yacs-checkout .
 docker run -it --rm developertogo/yacs-checkout
 ```
 
-# 2. Run code sample without Docker
+### 2. Run code sample without Docker
 
 Install [Ruby](https://www.ruby-lang.org/en/documentation/installation/), and `bundler` if you don't have it already, as follows: `gem install bundle`. 
 ```
@@ -32,7 +134,7 @@ bundle install
 ruby yacs_register.rb
 ```
 
-# Unit Tests
+### 3. Unit Tests
 
 Simply run:
 ```