Add manual page for zs

zs.1

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+.Dd January 7, 2022
+.Dt ZS 1
+.Os
+.Sh NAME
+.Nm zs
+.Nd Absolutely minimal static site generator written in Go.
+.Sh DESCRIPTION
+.Nm
+is an extremely minimal static site generator written in Go.
+.Pp
+It's inspired by
+.Em zas
+generator, but is even more minimal.
+.Pp
+The name stands for 'zen static'
+.Sh FEATURES
+.Li Zero configuration (no configuration file needed)
+.Pp
+.Li Cross-platform
+.Pp
+.Li Highly extensible
+.Pp
+.Li Works well for blogs and generic static websites (landing pages etc)
+.Pp
+.Li Easy to learn
+.Pp
+.Li Fast
+.Sh USAGE
+.Ss (Re-)build your site.
+.Nm 
+.Cm build
+.Ss (Re-)build one file and prints resulting content to standard output.
+.Nm
+.Cm build
+.Ar <file>
+.Ss (Re-)build your site every time you modify any file.
+.Nm
+.Cm watch
+.Ss Print a list of variables defined in the header of a given markdown file.
+.Nm 
+.Cm var
+.Ar <file>
+.Ar <var1> <var2> ...
+.Sh AUTHORS
+.Nm
+was made by James Mills 
+.Aq Lk https://prologic.shortcircuit.net.au/
+.Pp
+This manual page was written by Nova 
+.Aq Lk https://tilde.cafe/~novaburst