improves first slide preparation notes

basics.html

@@ -30,12 +30,12 @@
             ## for beginner-level git users
 
             notes:
-            - terminal session preparation:
-              - two terminals each with same tmux session, check font size
-              - remove user, host and path from prompt
-              - clean git config for demo
-            - close your laptops
-            - hand out cheat sheets later, no need to write stuff down
+            - `make -B` to create images
+            - two terminals each with same tmux session, increase font size
+            - `export PS1="\\[\\033[0;36m\\]\\w\\[\\033[0;35m\\]\$(__git_ps1 \" (%s)\")\\[\\033[0;36m\\] $ \\[\\033[0m\\]"`
+            - remove git config for demo
+            - log in to git.idiv.de
+            - cheat sheets are handed out later
             - if you have questions feel free to interrupt
           </section>