feat: Enabled gitlab pages job

See https://gitlab.com/pages/sphinx/-/blob/master/.gitlab-ci.yml

.gitlab-ci.yml

@@ -33,3 +33,14 @@ build:windows:
     - python -m pip install .
     - python -m bitia --help
     - python -m bitia run "ls -ltrh /"
+
+pages:
+  tags:
+    - linux
+  stage: deploy
+  script:
+    - python3 -m pip install sphinx
+    - sphinx-build -b html docs public
+  artifacts:
+    paths:
+      - public

Makefile

@@ -32,9 +32,11 @@ release:
 	rm -rf dist/*.whl
 	bash ./.ci/realese.sh
 
-doc html:
+docs doc html:
 	cd docs && make html
 
 .PHONY : copr fix test install lint build \
+	doc docs html \
 	all check \
-	runner gitlab-runner image image_upload
+	runner gitlab-runner \
+	image image_upload