docs: add theme preview images

Closes #276

Makefile

@@ -44,8 +44,9 @@ update-doc-version-middleware:
 	sed -i 's/SABLIER_VERSION=v$(LAST)/SABLIER_VERSION=v$(NEXT)/g' plugins/caddy/Dockerfile.remote
 	sed -i 's/v$(LAST)/v$(NEXT)/g' plugins/caddy/README.md
 
+.PHONY: docs
 docs:
-	docsify serve docs
+	npx --yes docsify-cli serve docs
 
 # End to end tests
 e2e: e2e-caddy e2e-nginx e2e-traefik

docs/_sidebar.md

@@ -20,5 +20,5 @@
   - [Overview](/guides/overview)
   - [VSCode Server with Traefik and Kubernetes](/guides/code-server-traefik-kubernetes.md)
 - **Links**
-- [<img src="/assets/img/github.svg" />Github](https://github.com/acouvreur/sablier)
-- [<img src="/assets/img/docker.svg" height=24px />Docker Hub](https://hub.docker.com/r/acouvreur/sablier)
+- [<img src="assets/img/github.svg" />Github](https://github.com/acouvreur/sablier)
+- [<img src="assets/img/docker.svg" height=24px />Docker Hub](https://hub.docker.com/r/acouvreur/sablier)

docs/index.html

@@ -7,7 +7,7 @@
   <meta name="description" content="Description">
   <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0">
   <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsify-themeable@0/dist/css/theme-simple-dark.css">
-  
+  <link rel="icon" type="image/x-icon" href="assets/img/favicon.ico">
   <style>
    :root {
       --base-font-size: 16px;

docs/themes.md

@@ -9,10 +9,10 @@ You can also extend the themes by providing your own and they will be templated
 
 |       Name        |                                                  Preview                                                  |
 | :---------------: | :-------------------------------------------------------------------------------------------------------: |
-|      `ghost`      |           ![ghost](https://raw.githubusercontent.com/acouvreur/sablier/main/docs/img/ghost.png)           |
-|     `shuffle`     |         ![shuffle](https://raw.githubusercontent.com/acouvreur/sablier/main/docs/img/shuffle.png)         |
-| `hacker-terminal` | ![hacker-terminal](https://raw.githubusercontent.com/acouvreur/sablier/main/docs/img/hacker-terminal.png) |
-|     `matrix`      |          ![matrix](https://raw.githubusercontent.com/acouvreur/sablier/main/docs/img/matrix.png)          |
+|      `ghost`      |           ![ghost](assets/img/ghost.png)           |
+|     `shuffle`     |         ![shuffle](assets/img/shuffle.png)         |
+| `hacker-terminal` | ![hacker-terminal](assets/img/hacker-terminal.png) |
+|     `matrix`      |          ![matrix](assets/img/matrix.png)          |