Docs: Fix invalid query (#2857) (#2861)

* Fix invalid query

* Chore

(cherry picked from commit a6a934f)

Co-authored-by: Fabrizio <135109076+fabrizio-grafana@users.noreply.github.com>

docs/sources/tempo/traceql/_index.md

@@ -144,7 +144,7 @@ For example, to find all traces where an `http.status_code` attribute in a span
 This works for `http.status_code` values that are strings as well using lexographic ordering:
 
 ```
-{ span.http.status_code >= "400"}
+{ span.http.status_code >= "400" }
 ```
 
 Find all traces where the `http.method` attribute is either `GET` or `DELETE`:
@@ -250,7 +250,7 @@ TraceQL supports a grouping pipeline operator that can be used to group by arbit
 find someting like a single service with more than 1 error:
 
 ```
-{ error = true } | by(resource.service.name) | count() > 1
+{ status = error } | by(resource.service.name) | count() > 1
 ```
 
 ## Arithmetic