Add 1987/hines/try.sh

The files goto.c and goto.txt were also added. The first one is a short
file that is easy to see how many 'goto's there are and the goto.txt
file has seven 'goto's and one 'Goto' to demonstrate that the program is
case-sensitive.

The .gitignore file was updated with 'goto' though the Makefile does not
have (of course) a 'goto' rule as it's only there to have a C file which
is easy to see how many 'goto's there are.

1987/hines/goto.c

@@ -0,0 +1,9 @@
+int main(void)
+{
+    goto x;
+    x: goto y;
+    y: goto z;
+    z: goto a;
+    a: goto end;
+    end: return 0;
+}