use shortcode recommended-linuxinstaller

hugo/content/installation/install/linux/index.md

@@ -18,13 +18,13 @@ with BornAgain.
 
 The installer is self-extracting and does _not_ need any root permissions.
 
-The installer (e.g., `BornAgain-1.19.79-Linux.sh`) can be used as follows
+The installer (e.g., `{{% recommended-linuxinstaller %}}`) can be used as follows
 (here, installation root path is chosen to be `/tmp/ba`):
 ```
-$ chmod +x BornAgain-1.19.79-Linux.sh  # permit execution
+$ chmod +x {{% recommended-linuxinstaller %}}  # permit execution
 $ ba_path='/tmp/ba'
 $ mkdir $ba_path  # make a deliberate installation path
-$ ./BornAgain-1.19.79-Linux.sh --exclude-subdir --skip-license --prefix=$ba_path
+$ ./{{% recommended-linuxinstaller %}} --exclude-subdir --skip-license --prefix=$ba_path
 ```
 and then, the GUI can be executed:
 ```
@@ -35,7 +35,7 @@ $ ./bin/bornagain
 The installer provides also a small help for its options; use the following to obtain
 a description of the available options:
 ```
-$ BornAgain-1.19.79-Linux.sh --help
+$ {{% recommended-linuxinstaller %}} --help
 ```
 
 For other distributions, see [build instructions]({{% relref "installation/building/unix" %}}).

hugo/layouts/shortcodes/recommended-linuxinstaller.html

+BornAgain-{{.Site.Params.version_mmp}}-Linux.sh{{- print "" -}}