Update README.md

Added some extra information to the description of Introduction to Data Science

Author: ekmanch

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@@ -64,7 +64,14 @@ Data Analysis libraries: will learn to use Pandas, Numpy and Scipy libraries to
 
 # Introduction to Data Science
 
-The art of uncovering the insights and trends in data has been around since ancient times. The ancient Egyptians used census data to increase efficiency in tax collection and they accurately predicted the flooding of the Nile river every year. Since then, people working in data science have carved out a unique and distinct field for the work they do. This field is data science. In this course, we meet some data science practitioners and we get an overview of what data science is today.
+The art of uncovering the insights and trends in data has been around since ancient times. The ancient Egyptians used census data to increase efficiency in tax collection and they accurately predicted the flooding of the Nile river every year. Since then, people working in data science have carved out a unique and distinct field for the work they do. This field is data science. In this course, we will meet some data science practitioners and we will get an overview of what data science is today.
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+In this course you will:
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+* Meet people who work in data science.
+* Explore definitions of data science.
+* Learn about data science in a business context.
+* Discover some use cases and applications of data science.
 
 # Data Science Tools