Docs: Parsing error fix

Signed-off-by: Elena Uziunaite <elena.uziunaite@arm.com>
Change-Id: I3b3396eb5980ad7a2c404dc09473eb597533c3fa
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index ae6b72e..baf1fd1 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -25,8 +25,8 @@
   configuration: docs/conf.py
 
 # The documentation will also be built in a pdf format
- formats:
-    - pdf
+formats:
+   - pdf
 
 # Configuration of the Python environment
 python: