Add HiTech C Sample source code

Source/Images/d_hitechc/Readme.txt

@@ -51,3 +51,14 @@ warning and error messages.  The code number for each of these
 messages will still be printed.  The textual description for all of
 these warnings/errors can be found in the Doc/Language directory,
 HI-TECH Z80 C Compiler Messages.txt.
+
+== Sample Application ==
+
+This disk image includes a very small sample application called
+HELLO.C that can be used to demonstrate the build process.  The
+following commands will build this sample application.
+
+C -V HELLO.C
+
+Then run it by typeing
+HELLO

Source/Images/d_hitechc/u0/HELLO.C

@@ -0,0 +1,7 @@
+main()
+{
+        int i;
+        for( i = 1; i <= 10; i++ ) {
+        	printf("Hello World, from HiTech C line %d\n", i);
+        }
+}

Source/Images/d_hitechc/u1/HELLO.C

@@ -0,0 +1,7 @@
+main()
+{
+        int i;
+        for( i = 1; i <= 10; i++ ) {
+        	printf("Hello World, from HiTech C line %d\n", i);
+        }
+}