Add Vitepress docs (#326)

* Add vitepress for docs

* some fix

* Use vitepress and update docs

* Use vitepress and update docs

* Update README.md

* Add favicon

* Add docs by @jiriks74

Co-authored-by: jiriks74 <jiri@stefka.eu>

---------

Co-authored-by: jiriks74 <jiri@stefka.eu>

docs/installation/binary.md

@@ -0,0 +1,14 @@
+# Install from binary
+
+Download the archive for your system from the release page [here](https://github.com/thomiceli/opengist/releases/latest), and extract it.
+
+```shell
+# example for linux amd64
+wget https://github.com/thomiceli/opengist/releases/download/v1.7.4/opengist1.7.4-linux-amd64.tar.gz
+
+tar xzvf opengist1.7.4-linux-amd64.tar.gz
+cd opengist
+chmod +x opengist
+./opengist # with or without `--config config.yml`
+```
+