Merge pull request #579 from alexsegura/fix-typo

Fix typo.

Author: dunglas

core/operations.md

@@ -450,7 +450,7 @@ You can control the path of subresources with the `path` option of the `subresou
  * ...
  * @ApiResource(
  *      subresourceOperations={
- *          "answer_get_subresource"= {
+ *          "answer_get_subresource"={
  *              "method"="GET",
  *              "path"="/questions/{id}/all-answers"
  *          },