[fix] polished markdown alerts, take #3

_includes/alert.html

@@ -1,5 +1,4 @@
-{% assign text = include.content | split: '
-' %}
+{% assign text = include.content | split: '<br>' %}
 
 <div class="alert {{ include.type }}">
     <p>

content/INSTALL.md

@@ -15,9 +15,7 @@ The following is advice on what to do before and during the installation of a Fe
 
 > {% include alert.html type='note' content='The cross-platform Fedora Media Writer is the <em>official, tested and supported</em> method for the creation of bootable media. Instructions (alongside a word on alternative methods) are available <a href="https://docs.fedoraproject.org/en-US/fedora/latest/preparing-boot-media/">here</a>.' %}
 
-> {% include alert.html type='tip' content='If you don't already have a Fedora Atomic installation, use a Fedora Atomic ISO that matches your secureblue target image to install one. If you want to use a secureblue Silverblue image, start with the Fedora Silverblue ISO, Kinoite for Kinoite, Sericea (Sway Atomic) for Sericea and all the Wayblue images, and CoreOS for all the securecore images.
-
-For more details on the available images, have a look at the <a href="/images">list of available images</a> before proceeding.' %}
+> {% include alert.html type='tip' content='If you don't already have a Fedora Atomic installation, use a Fedora Atomic ISO that matches your secureblue target image to install one. If you want to use a secureblue Silverblue image, start with the Fedora Silverblue ISO, Kinoite for Kinoite, Sericea (Sway Atomic) for Sericea and all the Wayblue images, and CoreOS for all the securecore images.<br>For more details on the available images, have a look at the <a href="/images">list of available images</a> before proceeding.' %}
 
 > {% include alert.html type='caution' content='The Fedora 41 ISO contains a bugged version of rpm-ostree. As such, after using it to install Fedora Atomic, you <em>must</em> run rpm-ostree upgrade and then restart, before running the secureblue installer.' %}