[clang-tools-extra] [NFC][clang-tidy] Update documentation for StatusOr check. (PR #176498)

[Rohan Jacob-Rao via cfe-commits]

================
@@ -328,10 +328,10 @@ instead:
 
 .. code:: cpp
 
-   void f(std::vector<absl::StatusOr<int>> sors) {
-     absl::StatusOr<int>& sor0 = sors[0];
-     if (sor0.ok()) {
-       use(*sor0);
+   void f(std::vector<absl::StatusOr<int>> xs) {
----------------
rohanjr wrote:

Done.

https://github.com/llvm/llvm-project/pull/176498