Import meta-files

These files are imported from HedgeDoc 1 / the master branch.

Signed-off-by: David Mehren <git@herrmehren.de>

docs/setup/cloudron.md

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+Cloudron
+===
+
+Install CodiMD on [Cloudron](https://cloudron.io):
+
+[![Install](https://cloudron.io/img/button.svg)](https://cloudron.io/button.html?app=io.hackmd.cloudronapp)

docs/setup/docker-linuxserver.md

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+LinuxServer.io CodiMD Image
+===
+[![LinuxServer.io Discord](https://img.shields.io/discord/354974912613449730.svg?logo=discord&label=LSIO%20Discord&style=flat-square)](https://discord.gg/YWrKVTn)[![container version badge](https://images.microbadger.com/badges/version/linuxserver/codimd.svg)](https://microbadger.com/images/linuxserver/codimd "Get your own version badge on microbadger.com")[![container image size badge](https://images.microbadger.com/badges/image/linuxserver/codimd.svg)](https://microbadger.com/images/linuxserver/codimd "Get your own version badge on microbadger.com")![Docker Pulls](https://img.shields.io/docker/pulls/linuxserver/codimd.svg)![Docker Stars](https://img.shields.io/docker/stars/linuxserver/codimd.svg)[![Build Status](https://ci.linuxserver.io/buildStatus/icon?job=Docker-Pipeline-Builders/docker-codimd/master)](https://ci.linuxserver.io/job/Docker-Pipeline-Builders/job/docker-codimd/job/master/)[![LinuxServer.io CI summary](https://lsio-ci.ams3.digitaloceanspaces.com/linuxserver/codimd/latest/badge.svg)](https://lsio-ci.ams3.digitaloceanspaces.com/linuxserver/codimd/latest/index.html)
+
+[LinuxServer.io](https://linuxserver.io) have created an Ubuntu-based multi-arch container image for x86-64, arm64 and armhf.
+
+- It supports all the environment variables detailed in the [configuration documentation](../configuration-env-vars.md) to modify it according to your needs.
+
+- It gets rebuilt on new releases from CodiMD and also weekly if necessary to update any other package changes in the underlying container, making it easy to keep your CodiMD instance up to date.
+
+- It also details how to easily [utilize Docker networking to reverse proxy](https://github.com/linuxserver/docker-codimd/#application-setup) CodiMD using their [LetsEncrypt docker image](https://github.com/linuxserver/docker-letsencrypt)
+
+In order to contribute check the LinuxServer.io [GitHub repository](https://github.com/linuxserver/docker-codimd/) for CodiMD.
+And to find all tags and versions of the image, check the [Docker Hub repository](https://hub.docker.com/r/linuxserver/codimd).

docs/setup/docker.md

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+CodiMD Docker Image
+===
+
+[![Try in PWD](https://cdn.rawgit.com/play-with-docker/stacks/cff22438/assets/images/button.png)](http://play-with-docker.com?stack=https://github.com/codimd/container/raw/master/docker-compose.yml&stack_name=codimd)
+
+
+**Debian-based version:**
+
+[![Docker Repository on Quay](https://quay.io/repository/codimd/server/status "Docker Repository on Quay")](https://quay.io/repository/codimd/server)
+
+
+**Alpine-based version:**
+
+[![Docker Repository on Quay](https://quay.io/repository/codimd/server/status "Docker Repository on Quay")](https://quay.io/repository/codimd/server)
+
+The easiest way to setup CodiMD using docker are using the following three commands:
+
+```sh
+git clone https://github.com/codimd/container.git codimd-container
+cd codimd-container
+docker-compose up
+```
+Read more about it in the [container repository](https://github.com/codimd/container).

docs/setup/heroku.md

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+Heroku Deployment
+===
+
+You can quickly setup a sample Heroku CodiMD application by clicking the button
+below.
+
+[![Deploy on Heroku](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/codimd/server/tree/master)

docs/setup/kubernetes.md

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+Kubernetes
+===
+
+To install use `helm install stable/hackmd`.
+
+For all further details, please check out the offical CodiMD  [K8s helm chart](https://github.com/kubernetes/charts/tree/master/stable/hackmd).

docs/setup/manual-setup.md

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+Manual Installation
+===
+
+## Requirements on your server
+
+- Node.js 8.5 or up
+- Database (PostgreSQL, MySQL, MariaDB, SQLite, MSSQL). Must use charset `utf8`: this is typically the
+  default in PostgreSQL and SQLite, while in MySQL and MariaDB utf8 might need to be set with
+  `alter database <DBNAME> character set utf8 collate utf8_bin;`
+- npm (and its dependencies, [node-gyp](https://github.com/nodejs/node-gyp#installation))
+- yarn
+- Bash (for the setup script)
+- For **building** CodiMD we recommend to use a machine with at least **2GB** RAM
+
+
+## Instructions
+
+1. Check if you meet the [requirements at the top of this document](#requirements-on-your-server).
+2. Clone this repository (preferred) or download a release and unzip it.
+3. Enter the directory and type `bin/setup`, which will install npm dependencies and create configs.
+4. Modify `config.json`, see docs [here](https://github.com/codimd/server/blob/master/docs/configuration-config-file.md).
+5. Instead of modifying `config.json`, it's possible to configure CodiMD through environment variables which will
+   overwrite the configs, see docs [here](https://github.com/codimd/server/blob/master/docs/configuration-env-vars.md).
+6. Build front-end bundle by `yarn run build` (use `yarn run dev` if you are in development)
+7. Modify the file named `.sequelizerc`, change the value of the variable `url` with your db connection string. For example:
+   - `postgres://username:password@localhost:5432/codimd`
+   - `mysql://username:password@localhost:3306/codimd`
+   - `sqlite://:memory:`
+8. It is recommended to start your server manually once: `npm start --production`, this way it's easier to see warnings or errors that might occur (leave out `--production` for development).
+9. Run the server as you like (node, forever, pm2, SystemD, Init-Scripts)
+
+
+## How to upgrade your installation
+
+If you are upgrading CodiMD from an older version, follow these steps:
+
+1. Check if you meet the [requirements at the top of this document](#requirements-on-your-server).
+2. Verify which version you were running before and take a look at [migrations and breaking changes](../guides/migrations-and-breaking-changes.md) to see if additional steps, or configuration changes are necessary!
+3. Fully stop your old CodiMD server.
+4. `git pull` or unzip a new release in the directory.
+5. Run `bin/setup`. This will take care of installing dependencies. It is safe to run on an existing installation.
+6. Build front-end bundle by `yarn run build` (use `yarn run dev` if you are in development).
+7. It is recommended to start your server manually once: `npm start --production`, this way it's easier to see warnings or errors that might occur (leave out `--production` for development).
+8. You can now restart the CodiMD server!