Update README.md

README.md

@@ -1,14 +1,8 @@
 # StockTracker
-Tracks stock prices using Alpha Vantage API.
-Converts currency prices daily using ECB SDMX 2.1 RESTful web service.
-Aggregates daata into one file.
-Calculates how much money your stocks are worth.
-Makes a nice graph.
 
+Calls various APIs to get data on stock prices and currency rates, which it then uses to convert user input in the form of stock and amount owned to total value of portfolio in euros over time. The value of the portfolio is graphed using a JavaFX GUI.
 
-# StockTracker
-
-Keeps track of stock investments, converts them into euros and makes a nice graph to see your money over time.
+[Graph showing 1 AAPL stock owned from March 1st to Match 25th 2019](example.png)
 
 ## Getting Started
 
@@ -20,6 +14,8 @@ For functional usage navigate to "Help -> Getting Started" from the menu bar of
 
 * [Java 8](https://www.oracle.com/technetwork/java/javase/overview/java8-2100321.html) - The programming language used
 * [Maven](https://maven.apache.org/) - Dependency Management, project building and deployment
+* [Alpha Vantage API](https://www.alphavantage.co/) - API for fetching stock data
+* [ECB SDMX 2.1 RESTful web service](https://sdw-wsrest.ecb.europa.eu/help/) - API for fetching currency data
 
 ## Authors