docs(graphql): Correct mutation -> query for searchAcrossLineage examples (#9134)

docs/api/tutorials/lineage.md

@@ -113,12 +113,10 @@ Expected Response:
 
 You can now see the lineage between `fct_users_deleted` and `logging_events`.
 
-
 <p align="center">
   <img width="70%"  src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/apis/tutorials/lineage-added.png"/>
 </p>
 
-
 ## Add Column-level Lineage
 
 <Tabs>
@@ -135,12 +133,10 @@ You can now see the lineage between `fct_users_deleted` and `logging_events`.
 
 You can now see the column-level lineage between datasets. Note that you have to enable `Show Columns` to be able to see the column-level lineage.
 
-
 <p align="center">
   <img width="70%"  src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/apis/tutorials/column-level-lineage-added.png"/>
 </p>
 
-
 ## Read Lineage
 
 <Tabs>
@@ -180,7 +176,7 @@ query searchAcrossLineage {
 }
 ```
 
-This example shows using lineage degrees as a filter, but additional search filters can be included here as well. 
+This example shows using lineage degrees as a filter, but additional search filters can be included here as well.
 
 </TabItem>
 <TabItem value="curl" label="Curl">
@@ -188,7 +184,7 @@ This example shows using lineage degrees as a filter, but additional search filt
 ```shell
 curl --location --request POST 'http://localhost:8080/api/graphql' \
 --header 'Authorization: Bearer <my-access-token>' \
---header 'Content-Type: application/json'  --data-raw '{ { "query": "mutation searchAcrossLineage { searchAcrossLineage( input: { query: \"*\" urn: \"urn:li:dataset:(urn:li:dataPlatform:dbt,long_tail_companions.adoption.human_profiles,PROD)\" start: 0 count: 10 direction: DOWNSTREAM orFilters: [ { and: [ { condition: EQUAL negated: false field: \"degree\" values: [\"1\", \"2\", \"3+\"] } ] } ] } ) { searchResults { degree entity { urn type } } }}"
+--header 'Content-Type: application/json'  --data-raw '{ { "query": "query searchAcrossLineage { searchAcrossLineage( input: { query: \"*\" urn: \"urn:li:dataset:(urn:li:dataPlatform:dbt,long_tail_companions.adoption.human_profiles,PROD)\" start: 0 count: 10 direction: DOWNSTREAM orFilters: [ { and: [ { condition: EQUAL negated: false field: \"degree\" values: [\"1\", \"2\", \"3+\"] } ] } ] } ) { searchResults { degree entity { urn type } } }}"
 }}'
 ```
 

metadata-ingestion/examples/library/read_lineage_rest.py

@@ -6,7 +6,7 @@ graph = DataHubGraph(DatahubClientConfig(server=gms_endpoint))
 
 # Query multiple aspects from entity
 query = """
-mutation searchAcrossLineage {
+query searchAcrossLineage {
   searchAcrossLineage(
     input: {
       query: "*"