05-cond.md: Remove quotes from output

... Quotes do not actually appear when printing things to the screen Pull Request: #576
swcarpentry · Sep 24, 2018 · 63ee71a · 63ee71a
1 parent 2778801
commit 63ee71a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/_episodes/05-cond.md b/_episodes/05-cond.md
@@ -89,7 +89,7 @@ else:
 {: .language-python}
 
 ~~~
-"-3 is negative"
+-3 is negative
 ~~~
 {: .output}