Fixed markdown style

docs/feedback/feedback_issue_8.md

@@ -122,7 +122,7 @@ Blimey, the `count_n_players` function is not even mentioned!
 ...
 
 > 2.4.5
-> An important concept when doing TDD is to write only enough production 
+> An important concept when doing TDD is to write only enough production
 > (non-test code) to pass the test. In this section I think you are writing
 > more than needed to pass the test. Eg the test don’t care about sprite or
 > its transform yet in this section you are writing the code for it.
@@ -142,4 +142,3 @@ Blimey, the `count_n_players` function is not even mentioned!
 > I believe your audience (new to tdd) would benefit of this breaking down of
 > small steps.
 
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