Use mkdocs snippets to template common content blocks (#135)

manuscript/recipes/ghost.md

@@ -30,8 +30,7 @@ mkdir -p /var/data/ghost
 
 Create a docker swarm config file in docker-compose syntax (v3), something like this:
 
-!!! tip
-        I share (_with my [sponsors](https://github.com/sponsors/funkypenguin)_) a private "_premix_" git repository, which includes necessary docker-compose and env files for all published recipes. This means that sponsors can launch any recipe with just a ```git pull``` and a ```docker stack deploy``` 👍
+--8<-- "premix-cta.md"
 
 ```
 version: '3'
@@ -64,12 +63,6 @@ Launch the Ghost stack by running ```docker stack deploy ghost -c <path -to-dock
 
 Create your first administrative account at https://**YOUR-FQDN**/admin/
 
-## Chef's Notes 📓
+[^1]: A default using the SQlite database takes 548k of space
 
-1. If I wasn't committed to a [static-site-generated blog](https://www.funkypenguin.co.nz/blog/), Ghost is the platform I'd use for my blog.
-2. A default using the SQlite database takes 548k of space:
-```
-[root@ds1 ghost]# du -sh /var/data/ghost/
-548K	/var/data/ghost/
-[root@ds1 ghost]#
-```
+--8<-- "recipe-footer.md"