update absolute/relative paths answers

answered the modified question 2
rephrased question 3 answer to address question
close #198

diagnostic.md

@@ -71,13 +71,13 @@ Using Atom, open up `diagnostic.md` and write your answers below (where indicate
 If we are in the `project` directory and use `cd planning`, is a relative or absolute path being referenced? How do you know?
 
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-
+Relative path, `planning` is referenced with respect to the current working directory, `project`.
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 3. Now suppose that we have an image file living inside our project. Would we refer to it with an absolute or relative path? Why?
 
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- We can use relative paths which are a path from the directory or file we are currently in or absolute paths which are a path from our root directory.
+ Relative, the image file lives inside our current working directory, `project`; as a result, an absolute path is not needed to access it.
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