Add 1996/schweikh2/try.sh + format/typo checks

The try.sh script runs some of the commands in the try section as well
as a minimal version of something the author recommends one trying for a
pleasing effect. The reason it is minimal is because it is an infinite
loop and it seems like not a good idea to have an infinite loop in a
script that demonstrates a few things of the entry.

Format and typo check the README.md file.

1996/schweikh2/try.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+make all >/dev/null || exit 1
+
+
+read -r -n 1 -p "Press any key to to run ./schweikh2: " 1>&2
+./schweikh2
+echo >&2
+
+read -r -n 1 -p "Press any key to run: ./schweikh2 15 1 0 0/0 | head -n 15: " 1>&2
+./schweikh2 15 1 0 0/0 | head -n 15
+echo >&2
+
+read -r -n 1 -p "Press any key one more time: " 1>&2
+i=0
+while ((i++<15)); do
+    grep -v '#' schweikh2.c
+done