Added README and documentation src and CI/CD part.

.gitlab-ci.yml

+image: julia:latest
+
+stages:
+  - documentation
+  - deploy
+
+build documentation:
+  stage: documentation
+  script:
+    - julia --project=. -e 'using Pkg; Pkg.instantiate()'
+    - julia --project=. docs/make.jl
+  artifacts:
+    paths:
+      - docs/build/
+    expire_in: 1 week
+  only:
+    - main
+
+pages:
+  stage: deploy
+  script:
+    - mv docs/build public
+  artifacts:
+    paths:
+      - public
+  only:
+    - main  

README.md

+# FACT Workflow Manager
+A Julia workflow manager, reading workflow from .toml files and running asynchronous parallel and sequential tasks based on FACT Data containers, saving results on FACT Results container.
+
+---
+## Use
+Please refer to the APIs accessible in the documentation section: https://fact.pages.nilu.no/utils/FACTWorkflowManager
+
+---
+## Specifications
+
+---
+## Notes
+
+---
+### Authors
+Riccardo Boero - ribo@nilu.no
+
+### License

docs/make.jl

+using Documenter
+using FACTWorkflowManager
+
+makedocs(
+    sitename = "FACT Workflow Manager",
+    modules = [FACTWorkflowManager],
+    format = Documenter.HTML(
+        repolink = "https://git.nilu.no/fact/utils/FACTWorkflowManager.git"
+    ),
+    repo = "https://git.nilu.no/fact/utils/FACTWorkflowManager.git"
+)

docs/src/api.md

+# API Reference
+
+```@autodocs
+Modules = [FACTWorkflowManager]
+Private
+Order = [:function, :type]
+```
+
+```@docs
+FACTWorkflowManager.FACTWorkflowManager
+```
\ No newline at end of file

docs/src/index.md

+# Documentation
+
+Contents:
+
+- [API Reference](api.md)