Add markdown linting (without breaking the site this time!)

manuscript/recipes/tiny-tiny-rss.md

@@ -20,7 +20,7 @@ description: Geeky RSS reader
 
 We'll need several directories to bind-mount into our container, so create them in /var/data/ttrss:
 
-```
+```bash
 mkdir /var/data/ttrss
 cd /var/data/ttrss
 mkdir -p {database,database-dump}
@@ -32,7 +32,7 @@ cd /var/data/config/ttrss
 
 Create ttrss.env, and populate with the following variables, customizing at least the database password (POSTGRES_PASSWORD **and** DB_PASS) and the TTRSS_SELF_URL to point to your installation.
 
-```
+```bash
 # Variables for postgres:latest
 POSTGRES_USER=ttrss
 POSTGRES_PASSWORD=mypassword
@@ -125,4 +125,4 @@ Launch the TTRSS stack by running ```docker stack deploy ttrss -c <path -to-dock
 
 Log into your new instance at https://**YOUR-FQDN** - the first user you create will be an administrative user.
 
---8<-- "recipe-footer.md"
+--8<-- "recipe-footer.md"