started documentation for system installation

_setup.qd

@@ -12,7 +12,7 @@
 .doctype {docs}
 .theme {darko} layout:{hyperlegible}
 
-.var {assets} {assets/}
+.var {assets} {@/assets}
 .var {logo} {{.assets}/fz-stack-icon.svg}
 .var {banner} {{.assets}/fz-stack-transparent.svg}
 .var {projectname} {fz-stack}
@@ -32,8 +32,13 @@
 .htmloptions title:{.pagetitle}
 .ifnot {.docname::equals {.pagetitle}}
 	.htmloptions title:{.docname | .pagetitle}
-.ifnot {.docname::isnone}
+.if {.docname::equals {}}
 	.docname {.pagetitle}
 
 .numbering
 	- footnotes: i
+
+.function {example}
+	title? content:
+	.box {.title::otherwise {Example}} type:{tip}
+		.content