simplifies motivation structure to flowchart

gitk was not a good vis

.gitignore

-paper.html
-paper.pdf
 img/git-remote-contributor.svg
 img/git-remote-maintainer.svg
 img/git-remote-solo.svg
 img/license-chooser.svg
+img/motivation-structure.svg
 img/motivation-throwaway-playground.svg
 img/staging-area.svg
+paper.html
+paper.pdf
 *.pdf

basics.html

@@ -117,7 +117,7 @@
             - statistics and R support @ iDiv since 2014
             - knows that kind of pain:
 
-            ![blah](img/draft_mess_half_size.png)
+            ![blah](img/motivation-draft-mess-half-size.png)
           </section>
 
           <section id="intro-about-you" data-markdown>
@@ -153,7 +153,7 @@
             ## motivation #1
             ### avoid mess
 
-            ![blah](img/draft_mess.png)
+            ![blah](img/motivation-draft-mess.png)
 
             notes:
             - who has seen such a mess?
@@ -165,11 +165,12 @@
             ## motivation #1
             ### want structure
 
-            ![blah](img/gitk-pretty-history.png)
+            ![blah](img/motivation-structure.svg)
 
             notes:
             - structure
             - who, when, why
+            - (and you can see how fast you are with git *joke*)
           </section>
 
           <section id="motivation-playground" data-markdown>

img/motivation-structure.dot

+digraph {
+    node [shape = "box", style = "filled, rounded"]
+
+    subgraph clustermaster {
+        label = "master"
+
+        node [color = limegreen]
+
+        master4[label = "Dirk (today)\nupdates methods chapter", color = limegreen]
+        master3[label = "Christian (yesterday)\nfixes typos", color = darkorchid1]
+        master2[label = "Dirk (three days ago)\nadds methods chapter", color = limegreen]
+        master1[label = "...", color = grey]
+
+        master4 -> master3 -> master2 -> master1
+    }
+}