Add short_description_raw option

doc/snac.8

@@ -206,7 +206,7 @@ The user name of the instance administrator (optional).
 .It Ic short_description
 A textual short description about the instance (optional).
 .It Ic short_description_raw
-Whether to interpret short_descript as raw string or convert to HTML (optional)
+Whether to interpret short_descript as raw string or convert to HTML (optional).
 .It Ic fastcgi
 If set to true,
 .Nm