Add 'Environment variables'

Environment-variables.md

@@ -0,0 +1,21 @@
+The content of the environment files used in this project is being defined in this page, as it is not possible to upload files to this wiki.
+
+In case of doubt, these files must be located at the root of the projecy and, of course, they should not included into the repository, as it is not recommended to put any credentials into the repo itself.
+
+`.env`
+
+```env
+# -- PROJECT ---
+
+SWIFT_TARGET_NAME=AmiiboService
+
+# --- DOCUMENTATION ---
+
+SWIFT_DOC_FOLDER=./Documentation
+SWIFT_DOC_GITHUB_OUTPUT=${SWIFT_DOC_FOLDER}/github  
+SWIFT_DOC_GITHUB_BASE_PATH=amiibo-service
+SWIFT_DOC_PREVIEW_URL=http://localhost:8080/documentation/amiiboservice
+SWIFT_DOC_XCODE_OUTPUT=${SWIFT_DOC_FOLDER}/${SWIFT_TARGET_NAME}.doccarchive
+
+```
+---