Merge pull request #23 from UMD-ARLIS/updating_readthedocs_file

Update .readthedocs.yaml
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index c75e296..082fb71 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -14,12 +14,19 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+
 # Read the Docs configuration file
 # See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
 
 # Required
 version: 2
 
+# Specify the operating system for the build
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.7"
+
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
   configuration: docs/conf.py
@@ -34,6 +41,7 @@
 
 # Optionally set the version of Python and requirements required to build your docs
 python:
-  version: 3.7
-  install:
-    - requirements: docs/requirements.txt
+   install:
+   - requirements: docs/requirements.txt
+
+