Update .readthedocs.yaml

Author: jhu99

.readthedocs.yaml

@@ -15,8 +15,8 @@ build:
     # golang: "1.20"
 
 # Build documentation in the "docs/" directory with Sphinx
- sphinx:
-   configuration: docs/source/conf.py
+sphinx:
+  configuration: docs/source/conf.py
   # You can configure Sphinx to use a different builder, for instance use the dirhtml builder for simpler URLs
   # builder: "dirhtml"
   # Fail on all warnings to avoid broken references