Update YAML in docs

Author: deliahu

.github/ISSUE_TEMPLATE/bug-report.md

@@ -15,7 +15,7 @@ assignees: ''
 
 ### Application Configuration
 
-[If applicable, any relevant resource YAML configuration or the name of the example application]
+[If applicable, any relevant resource configuration or the name of the example application]
 
 ### To Reproduce
 

docs/quick-start.md

@@ -241,7 +241,7 @@ Add to `app.yaml`:
       index: class_index
 ```
 
-You can simplify the YAML for aggregates and transformed columns using [templates](applications/advanced/templates.md).
+You can simplify the configuration for aggregates and transformed columns using [templates](applications/advanced/templates.md).
 
 #### Define the model