minor changes to formating and content of installation

docs/tech/architecture/CHANGELOG.md

docs/tech/api/openapi.yml

files-from-repos/main-installation.md

docs/tech/installation/TROUBLESHOOTING.md

docs/tech/installation/USERS.md

docs/tech/installation/https/base-setup.md

docs/tech/installation/https/owncert.md

files-from-repos/USERS.md

files-from-repos/base-setup.md

files-from-repos/owncert.md

docs/tech/installation/setup.md

# python

.python-version

# Installation (Docker)

Start with choosing Docker Compose preset ([https](./https/base-setup.md) or [https-owncert](./https/owncert.md))

these can be downloaded from [here](https://gitlab.fi.muni.cz/inject/docker-deployment/-/packages). 

After chosing one and downloading it continue with downloading backend and frontend source code to the Compose preset folders.

Source code for frontend and backend can be downloaded in these following URLs

- [Frontend](https://gitlab.fi.muni.cz/inject/frontend/-/releases)

- [Backend](https://gitlab.fi.muni.cz/inject/backend/-/releases)

## Compatibility

To ensure that the downloaded versions of frontend and backend work correctly,

check that they have the same version in the name on their respective `Releases` pages.

E.g. `v2.0.0` of the frontend is fully compatible with `v2.0.0` of the backend.

1. Unzip the individual archives.

1. Rename the unzipped directories to `frontend` and `backend` respectively.

1. Ensure that `.env` file in the root directory is set up correctly. 

   For any uncertainties please refer to the [tech overview](./overview.md) page or to pages of given presets 

   ([https](./https/base-setup.md) or [https-owncert](./https/owncert.md)).

1. Run `docker compose up`, if any errors occur please refer to the troubleshooting guides.

{%

include-markdown "../../../files-from-repos/USERS.md"

%}

If you need to create normal users, then please refer to the [User Onboarding](./../security.md#user-onboarding).

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For version 2.0.0 of IXP, download Compose preset folder for HTTPS Deploymentps from [here](https://gitlab.fi.muni.cz/inject/docker-deployment/-/package_files/221/download).

{%

include-markdown "../../../../files-from-repos/base-setup.md"

%}

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For version 2.0.0 of IXP, download Compose preset folder for HTTPS Deployment with your own certificates from [here](https://gitlab.fi.muni.cz/inject/docker-deployment/-/package_files/222/download).

{%

include-markdown "../../../../files-from-repos/owncert.md"

%}

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