A lot of work on the presentation

The shell auto-image now runs code and turns the output into an image
that is embedded into the document

The prompt is configurable in /bin/prompt

The first draft is done up until the references section

shell/first-cat-commit-file

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+cd /tmp/demo
+
+currentCommit="$(git rev-parse HEAD)"
+fileName="$(echo $currentCommit | sed 's/\(..\)/\1\//')"
+echo -e "\$ zlib-flate -uncompress < .git/objects/$fileName"
+zlib-flate -uncompress < ".git/objects/$fileName" | tr '\000' '␀'
+echo "\$ zlib-flate -uncompress < .git/objects/$fileName | sha1sum"
+echo -e "$currentCommit"
+
+currentCommitTree="$(git cat-file -p $currentCommit | grep tree | cut -d' ' -f2)"
+echo "\$ git cat-file -p $(echo $currentCommitTree | grep -o '^.......') "
+git -c color.ui=always cat-file -p "$currentCommitTree"
+
+aFile="$(git cat-file -p $currentCommitTree | grep blob | head -n 1 | cut -d' ' -f3 | cut -d'	' -f1)"
+echo "\$ git cat-file -p $(echo $aFile | grep -o '^.......') "
+git -c color.ui=always cat-file -p "$aFile"
+
+