Update .readthedocs.yml

.readthedocs.yml

@@ -17,7 +17,7 @@ build:
 # Build documentation in the "docs/" directory with Sphinx
 python:
   install:
-    - requirements: docs/requirements.txt
+    - requirements: requirements.txt
 sphinx:
   configuration: conf.py
   # You can configure Sphinx to use a different builder, for instance use the dirhtml builder for simpler URLs