Update zipfile-readme.txt

Author: CelestialCalculations

zipfile-readme.txt

@@ -45,7 +45,7 @@ The sample programs have been optimized for 1920x1200 resolution. However, they
 4. "Java" directory
 This directory contains the source code for each of the book's programs, organized in subdirectories by chapter. The jars subdirectory contains each of the compiled programs with the name "RunChapX.jar" where 'X' is the chapter to which the program pertains. For example, RunChap3.jar is the sample program from Chapter 3. The "jar" subdirectory also has a shared library, ASTUtils.jar, that contains the various routines that are used in the programs. The source code for the shared library is under "Java\ASTUtils."
 
-These programs were developed in the Eclipse Oxygen development environment and compiled with a Java 1.8 compiler. Refer to the Eclipse user documentation for information about importing the source code into your environment. Note that you will most likely have to set the Java Build Path properties after you import the programs into your Eclipse environment to find the ASTUtils.jar library. All user interface components were developed with Swing widgets and were created with Eclipse's WindowBuilder tool. The main GUI for each chapter is in the ChapGUI.java source code file. The code for each chapter is placed in the package jll.cafae.chapX where the 'X' is the chapter to which the code applies. The ASTUtils components are in the package jll.cafae.ASTUtils.
+These programs were developed in the Eclipse Oxygen development environment and compiled with a Java 1.8 compiler. Refer to the Eclipse user documentation for information about importing the source code into your environment. Note that you will most likely have to set the Java Build Path properties after you import the programs into your Eclipse environment to find the ASTUtils.jar library. All user interface components were developed with Swing widgets and were created with Eclipse's WindowBuilder tool. The main GUI for each chapter is in the ChapGUI.java source code file. The code for each chapter is placed in the package jll.celcalc.chapX where the 'X' is the chapter to which the code applies. The ASTUtils components are in the package jll.celcalc.ASTUtils.
 
 The Java software can be compiled and exported as jar files through native Eclipse capabilities. Alternatively, you can use ant instead. The subdirectory "AntBuild" has the file "ant-build-master.xml" that recursively invokes an "ant-build.xml" file for the ASTUtils library and each chapter's program. The subdirectory "AntBuild" does not have any source code; its only purpose is to have a place to put the master ant build file. Besides compiling the code and packaging the results as a jar file, the ant build process also automatically creates Javadoc documentation. The documentation is located in a "doc" subdirectory underneath each chapter and the ASTUtils directory.