Format original README as code block

ASCII art is otherwise unreadable

README.md

@@ -1,6 +1,9 @@
 ![Build Status](https://github.com/hyrise/jcch-dbgen/actions/workflows/ci.yml/badge.svg?branch=master)
 ### Note: This fork is adapted for compilation using recent versions of Clang and GCC, which we ensure with a [GitHub action](https://github.com/hyrise/jcch-dbgen/actions).
 
+# JCC-H Data Generator
+
+```
 # @(#)README	2.4.0-JCCH
 ========================== JCC-H specific info =========================
 
@@ -478,4 +481,4 @@ following version usage rules:
     POWER5 		AIX 64-bit (5.3)			  C for AIX Compiler, v7  -q64 (no -g)
     IA-64		HPUX 64-bit ()		icc 		
     Linux 32-bit ()	gcc			
-
+```