Update README.md

Author: TimosPal

README.md

@@ -4,10 +4,10 @@ A syntax tree is generated and is analyzed for possible syntax errors.
 Produces intermediate code. (llvm , .ll files)
 
 ## Compilation
-A makefile is provided. While compiling all the generated files from javacup are generated using the provided jar files.
+A makefile is provided. While compiling all the generated files from jtb are generated using the provided jar files.
 
 ## Arguments
 Multiple files can be passed to be compiled.
 
 ## Tools used
-javacup , a LALR parser generator for Java.
+JTB is a syntax tree builder to be used with the Java Compiler Compiler (JavaCC) parser generator