diff --git a/docs/kiln.1.scd b/docs/kiln.1.scd
index 9e530d5..e0c2116 100644
--- a/docs/kiln.1.scd
+++ b/docs/kiln.1.scd
@@ -167,14 +167,14 @@ The following keys are supported per task:
 
 [[ *Key*
 :[ *Description*
-|  input_ext
-:  Input file extension
-|  output_ext
+|  input
+:  Input file extensions
+|  output
 :  Output file extension
-|  template_ext
+|  template
 :  Template file extension
 |  preprocess
-:  Preprocess command
+:  Preprocess commands
 |  postprocess
 :  Postprocess command
 |  static_dir
@@ -191,7 +191,7 @@ the output directory.
 The template file extension specifies the extension of the templates that will
 be used in the templates directory. If unset, no templates will be used.
 
-The preprocess command specifies a command which will run before content is
+The preprocess commands specify commands which will run before content is
 passed to a template. It will be provided the content as standard input and
 should write the processed content to standard output.
 
@@ -214,17 +214,17 @@ command to convert Gemini text to HTML.
 	```
 	# Build the site
 	[tasks.gemini]
-	input_ext = ".gmi"
-	output_ext = ".gmi"
-	template_ext = ".gmi"
+	input = [".gmi"]
+	output = ".gmi"
+	template = ".gmi"
 	static_dir = "static"
 	output_dir = "public"
 
 	# Export an HTML version of the site
 	[tasks.exporthtml]
-	input_ext = ".gmi"
-	output_ext = ".html"
-	template_ext = ".gmi"
+	input = [".gmi"]
+	output = ".html"
+	template = ".gmi"
 	postprocess = "gmnitohtml"
 	static_dir = "static"
 	output_dir = "public.html"
@@ -236,10 +236,10 @@ configuration makes use of the *markdown*(1) comand to convert Markdown to HTML.
 
 	```
 	[tasks.markdowntohtml]
-	input_ext = ".md"
+	input_ext = [".md"]
 	output_ext = ".html"
 	template_ext = ".html"
-	preprocess = "markdown"
+	preprocess.md = "markdown"
 	static_dir = "static"
 	output_dir = "public"
 	```
@@ -252,10 +252,38 @@ Templates have certain data and functions available to them.
 
 All templates have the following functions available to them:
 
-[[ *Function*
-:[ *Description*
-|  site
-:  Returns site metadata
+*site*
+	Returns site metadata
+
+*path.Base* _path_
+	Returns the last element of path.
+
+*path.Clean* _path_
+	Returns the shortest path name equivalent to path.
+
+*path.Dir* _path_
+	Returns all but the last element of path, typically the path's directory.
+
+*path.Ext* _path_
+	Returns the filename extension used by path.
+
+*path.Join* _elem..._
+	Joins any number of path elements into a single path.
+
+*safeHTML* _html_
+	Encapsulates a known safe HTML document fragment.
+
+*safeHTMLAttr* _attr_
+	Encapsulates an HTML attribute from a trusted source.
+
+*safeCSS* _css_
+	Encapsulates known safe CSS content.
+
+*safeJS* _js_
+	Encapsulates a known safe JavaScript expression.
+
+*safeURL* _url_
+	Encapsulates a known safe URL or URL substring.
 
 ## SITE METADATA