Add 2018/endoh1/try.sh + format/typo checks

The try.sh script shows each input file first so that one can see how it
turns out as a GIF file. The input files include those not suggested by
the judges including the source code itself (the author suggested it has
a message too).

The README.md file has been format/typo checked.

2018/endoh1/try.sh

@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 2018/endoh1
+#
+
+# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
+# this way allows us to have the user specify a different compiler in an easy
+# way.
+if [[ -z "$CC" ]]; then
+    CC="cc"
+fi
+
+make CC="$CC" all >/dev/null || exit 1
+
+# clear screen after compilation so that only the entry is shown
+clear
+
+read -r -n 1 -p "Press any key to show prog.c (space = next page, q = quit): "
+echo 1>&2
+less -EXF prog.c
+echo "$ ./prog < prog.c > prog.gif" 1>&2
+./prog < prog.c > prog.gif
+echo 1>&2
+
+read -r -n 1 -p "Press any key to show golem.txt (space = next page, q = quit): "
+echo 1>&2
+less -EXF golem.txt
+echo "$ ./prog < golem.txt > golem.gif" 1>&2
+./prog < golem.txt > golem.gif
+echo 1>&2
+
+read -r -n 1 -p "Press any key to show smily.txt (space = next page, q = quit): "
+echo 1>&2
+less -EXF smily.txt
+echo "$ ./prog < smily.txt > smily.gif" 1>&2
+./prog < smily.txt > smily.gif
+echo 1>&2
+
+read -r -n 1 -p "Press any key to show invisible.txt (space = next page, q = quit): "
+less -EXF invisible.txt
+echo "$ ./prog < invisible.txt > invisible.gif" 1>&2
+./prog < invisible.txt > invisible.gif
+echo 1>&2
+
+echo "Now open the GIF files prog.gif, golem.gif, smily.gif and invisible.gif" 1>&2
+echo "in a GIF viewer that can display animation in animated GIFs." 1>&2
+echo 1>&2
+echo "If you use macOS you can open them all in Safari, one tab per image, like: " 1>&2
+echo 1>&2
+echo "	open -a Safari prog.gif golem.gif smily.gif invisible.gif" 1>&2
+echo 1>&2
+echo "Once they're open make sure to watch as they change form." 1>&2