Improve readability in README.md

Added a blank line for improved readability.

Author: softchris

1-getting-started-lessons/1-intro-to-programming-languages/README.md

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 # Introduction to Programming Languages and Tools of the Trade
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 This lesson covers the basics of programming languages. The topics covered here apply to most modern programming languages today. In the 'Tools of the Trade' section, you'll learn about useful software that helps you as a developer.
 
 ![Intro Programming](../../sketchnotes/webdev101-programming.png)
@@ -203,4 +203,4 @@ Study a bit on the different languages available to the programmer. Try to write
 
 [Reading the Docs](assignment.md)
 
-> Note: When selecting tools for your assignment, do not choose editors, browsers, or command line tools already listed above.
+> Note: When selecting tools for your assignment, do not choose editors, browsers, or command line tools already listed above.