write man; fix man build

Makefile

@@ -29,8 +29,10 @@ docs:
 	make $(strip $(DOCS))
 
 build/man/%: docs/%.md build/man/ docs/
-	pandoc --from markdown --to man \
-		$< $@
+	pandoc --to man \
+		--standalone \
+		--output $@ \
+		$<
 
 %/:
 	@mkdir -p $@

docs/args.1.md

@@ -0,0 +1,56 @@
+---
+title: args
+section: 1
+author: Kevin Samuel <developer@kevinnlsamuel.com>
+---
+
+# SYNOPSIS
+
+args ARGUMENT ...
+
+# DESCRIPTION
+
+**args** separately prints to standard output each argument it receives with its position.
+
+The intended use of this tool is to help understand word splitting and quote removal by the shell.
+
+Each argument prints one line of output in the following format.
+
+```
+    @[POSITION]    [ARGUMENT]
+```
+
+The two fields are separated by a single tab character.
+
+In case an empty string is received as an argument, it is represented as follows
+for clarity. These quotes are not the actual input. Quotes would normally be removed by
+the shell before the command's execution.
+
+```
+    @1      ''
+```
+
+# EXAMPLE
+
+```console
+$ args one two "" "word with spaces" $(echo substituted command)
+@1      one
+@2      two
+@3      ''
+@4      word with spaces
+@5      substituted
+@6      command
+```
+
+If @5 and @6 surprised you, finding cases like these and playing around is the exact
+reason this tool exists.
+
+# EXIT CODES
+
+0   Success
+
+1   Failed because no arguments were received
+
+# LICENSE
+
+This software is distributed under the license specified in `LICENSE.txt`