Updated the gitlab cicd file to use a secret variable for readthedocs token.

.gitlab-ci.yml

@@ -13,4 +13,4 @@ deploy1:
   stage: deploy
   script:
     - echo "Deploying to readthedocs"
-    - curl -X POST -d "branches=master" -d "token=cb0bec0b1b510550ced5b5d620a432b5e87167fd" https://readthedocs.org/api/v2/webhook/adi-python/164528/
+    - curl -X POST -d "branches=master" -d "token=$READTHEDOCS_TOKEN" https://readthedocs.org/api/v2/webhook/adi-python/217168/