Update README.md of 4.fork_with_fd

Correct one return line in markdown
gfreewind · Aug 30, 2016 · 13cacd7 · 13cacd7
1 parent c8e11cf
commit 13cacd7
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/process/4.fork_with_fd/README.md b/process/4.fork_with_fd/README.md
@@ -10,10 +10,14 @@ How about the content of these two files?
 # Answer
 
 ./test1.txt:
+
+
 I'm parent
+
 I'm child
 
-./test2.txt:
+./test2.txt
+
 I'm child
 
 Notic: The content may be different in your environment.