Added more details about interpreter

README.md

@@ -1,19 +1,28 @@
 #Frege Scripting#
 
-This project aims to interpret Frege code snippets and it is the base for Frege REPL.
+This project aims to interpret Frege code snippets with on-the-fly in-memory compilation.
 
-The interpretation comprises of two step process as with normal Frege programs: 
-Compilation and Execution. The compilation step, unlike in a normal process, does not produce any class files on the 
-file system; instead it keeps them in memory. The interpreter just loads those class files from memory and executes that
-class. Just like normal Frege compilation, it also involves Java compilation which is acheived by
-using Eclipse JDT compiler so JDK is not required, just JRE is enough. 
+The interpreter reuses most of the Frege compiler - lexer, parser, type checker and Java code generation.
+Just after the code generation, instead of generating Java class files on the file system
+using an external Javac process, the interpreter compiles the Java code into memory and then
+through a special classloader, it loads the byte codes from memory. The actual result is then obtained through reflection
+on the dynamically generated class.
+
+Unlike normal Frege compilation, the interpreter does not produce any class files on the
+file system; instead it keeps them in memory. Eclipse compiler is used for Java compilation on-the-fly which
+eliminates the JDK dependency so to use the interpreter, only JRE is necessary.
+
+Frege REPL and [Online REPL](http://try.frege-lang.org/) make use of frege-scripting to provide an interactive
+environment on terminal as well as on the browser.
 
 ####JSR 223 Scripting support####
 
-This project also implements JSR 223, a scripting engine for Frege. 
-Frege Script Engine is available under releases page [here](https://github.com/Frege/frege-scripting/releases).
+This project also implements JSR 223, a scripting engine for Frege. This enables nice interface to Java and other systems
+which support other JVM languages through JSR 223 scripting engines.
+
 
 ###How to get frege-scripting?###
 
-Frege REPL and [Online REPL](http://try.frege-lang.org/) make use of frege-scripting and
-the frege-scripting binaries can be obtained from frege-repl releases page [here](https://github.com/Frege/frege-repl/releases).
+**Build from sources**: Checkout into some directory and then ```mvn install```
+
+**Binary**: Under releases page [here](https://github.com/Frege/frege-scripting/releases).