fix rtd

.readthedocs.yaml

@@ -5,6 +5,16 @@
 # Required
 version: 2
 
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.10"
+    # You can also specify other tool versions:
+    # nodejs: "19"
+    # rust: "1.64"
+    # golang: "1.19"
+
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
    configuration: docs/conf.py
@@ -13,8 +23,7 @@ formats:
    - pdf
 
 python:
-  version: 3.8
   install:
-    - requirements: docs/requirements.txt
+    - requirements: requirements.txt
     - method: setuptools
       path: .