copy: fix YAML documentation format

lib/ansible/modules/files/copy.py

@@ -37,9 +37,9 @@ options:
     version_added: "1.1"
   dest:
     description:
-      - Remote absolute path where the file should be copied to. If I(src) is a directory, this must be a directory too.
+      - 'Remote absolute path where the file should be copied to. If I(src) is a directory, this must be a directory too.
         If I(dest) is a nonexistent path and if either I(dest) ends with "/" or I(src) is a directory, I(dest) is created.
-        If I(src) and I(dest) are files, then parent directory of I(dest) isn't created: the task fails if it doesn't already exist.
+        If I(src) and I(dest) are files, then parent directory of I(dest) isn''t created: the task fails if it doesn''t already exist.'
     required: yes
   backup:
     description: