Add a description and an example for a presentation.

README.md

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+# Pointtools
+
+These  tools  are scripts and ways to present point files. They are pre‐
+formatted text files presented in catpoint(1). In /bin is  a  script  to
+easily convert markdown files to point files.
+
+See the examples/hello directory for how to use it in real life:
+
+	% cd catpoint
+	% make
+	% cp catpoint $HOME/bin
+	% cp ../bin/* $HOME/bin
+	% cd ../examples/hello
+	% cat hello.md | md2point
+	% catpoint *.txt
+
+There are not many formatting options for now, but it’s enough for daily
+usage. If you need any graph or formatting, use  troff(1)  and  all  the
+formatting available there.
+
+Have fun!
+

bin/md2point

@@ -1,4 +1,7 @@
 #!/bin/sh
+#
+# See LICENSE for license details.
+#
 
 mkfilename() {
 	printf "%.4d-%s" "$1" "$2" | tr '# :.' '_'

bin/point2pdf

@@ -1,4 +1,7 @@
 #!/bin/sh
+#
+# See the LICENSE file for license details.
+#
 
 name="slides"
 [ $# -gt 0 ] && name="$1"

examples/hello/0000-_Intro.txt

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+
+   Intro
+  =======
+
+  
+  This is the Hello World introduction to catpoint.
+  

examples/hello/0001-_A_new_slide.txt

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+
+   A new slide
+  =============
+
+  
+  Just show something on this new slide.
+  

examples/hello/0002-_Some_points.txt

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+
+   Some points
+  =============
+
+  
+  o point
+  o point
+          o sub point
+          o sub point
+          	o sub sub point
+          o sub point
+  

examples/hello/0003-_Ende.txt

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+
+   Ende
+  ======
+
+  
+  Thanks for using cattools.
+  

examples/hello/hello.md

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+## Intro
+
+This is the Hello World introduction to catpoint.
+
+## A new slide
+
+Just show something on this new slide.
+
+## Some points
+
+* point
+* point
+	* sub point
+	* sub point
+		* sub sub point
+	* sub point
+
+## Ende
+
+Thanks for using cattools.
+