72 columns

diff --git a/guide/challenge-bot.scm b/guide/challenge-bot.scm
index 1d662c2882dd34e1ba352aabc0a6eaf92a3609bf..2448c90e7471e3b02d6be1bf16f7659bcd7b8d59 100644 (file)
--- a/guide/challenge-bot.scm
+++ b/guide/challenge-bot.scm
@@ -25,7 +25,8 @@
               (item [wood block])
               (item [arduino])
               (item [#6-32x3/8\", four of them])
-              (item [robot deck, the white thing with a grid of holes1]))]))
+              (item [robot deck, the white thing with a grid of
+                           holes1]))]))
    (subsection
     :title [first hole]
     (subsubsection
@@ -68,7 +69,8 @@
                 smooth part of the bit when they are tightened.])
      (p (figure
          :legend "arduino to deck / twist tighten drill teeth"
-         (image :file "0-arduino-to-deck/2-twist-tighten-drill-teeth.png"))
+         (image
+          :file "0-arduino-to-deck/2-twist-tighten-drill-teeth.png"))
         [while holding the drill bit, twist end of the drill to tighten
                the teeth.
                make sure that the teeth end up gripping the flat part of
@@ -224,8 +226,8 @@
               the top side of the deck.])
      (p [hold the arduino board flat to the deck and line up the arduino
               hole so the screw can come up through it.
-              continue tightening the screw into the deck, spinning the same
-              direction as before.
+              continue tightening the screw into the deck, spinning the
+              same direction as before.
               tighten until the screw head touches the deck.
               do not continue tightening after that.])
      (p [the arduino should still be flat against the deck still, just