update doc

en/_sources/advanced-use.md.txt

@@ -5,6 +5,8 @@ Advanced Usage
 
 * help - display Arthas help
 * cls - clear the screen
+* [cat](cat.md) - Concatenate and print files
+* [pwd](pwd.md) - Return working directory name
 * session - display current session information
 * [reset](reset.md) - reset all the enhanced classes. All enhanced classes will also be reset when Arthas server is closed by `shutdown`
 * version - print the version for the Arthas attached to the current Java process
@@ -27,9 +29,10 @@ Advanced Usage
 
 * [sc](sc.md) - check the info for the classes loaded by JVM 
 * [sm](sm.md) - check methods info for the loaded classes
-* [dump](dump.md) - dump the loaded classes in byte code to the specified location
-* [redefine](redefine.md) - load external `*.class` files and re-define it into JVM
 * [jad](jad.md) - decompile the specified loaded classes
+* [mc](mc.md) - Memory compiler, compiles `.java` files into `.class` files in memory
+* [redefine](redefine.md) - load external `*.class` files and re-define it into JVM
+* [dump](dump.md) - dump the loaded classes in byte code to the specified location
 * [classloader](classloader.md) - check the inheritance structure, urls, class loading info for the specified class; using classloader to get the url of the resource e.g. `java/lang/String.class`
 
 ## monitor/watch/trace - related

en/_sources/index.md.txt

@@ -38,8 +38,8 @@ Arthas is built to solve these issues. A developer can troubleshoot production i
 Contents
 --------
 
-* [Installation](install-detail.md)
 * [Online tutorials(Recommend)](https://alibaba.github.io/arthas/arthas-tutorials?language=en)
+* [Installation](install-detail.md)
 * [Quick start](quick-start.md)
 * [Advanced usage](advanced-use.md)
 * [Commands](commands.md)

en/_sources/jad.md.txt

@@ -52,6 +52,30 @@ CharSequence {
 ...
 ```
 
+#### Print source only
+
+By default, the decompile result will have the `ClassLoader` information. With the `--source-only` option, you can print only the source code. Conveniently used with the [mc](mc.md)/[redefine](redefine.md) commands.
+
+```
+$ jad --source-only demo.MathGame
+/*
+ * Decompiled with CFR 0_132.
+ */
+package demo;
+
+import java.io.PrintStream;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Random;
+import java.util.concurrent.TimeUnit;
+
+public class MathGame {
+    private static Random random = new Random();
+    public int illegalArgumentCount = 0;
+...
+```
+
 #### Decompile the specified method
 
 ```java

en/_sources/mc.md.txt

@@ -1,7 +1,7 @@
 mc
 ===
 
-> Memory compiler, compiles java files into bytecode and class files in memory.
+> Memory compiler, compiles `.java` files into `.class` files in memory.
 
 ```bash
 mc /tmp/Test.java

en/_sources/redefine.md.txt

@@ -1,7 +1,7 @@
 redefine
 ========
 
-> Load the external `*.class` files to re-define the loaded peer class in JVM.
+> Load the external `*.class` files to re-define the loaded classes in JVM.
 
 Reference: [Instrumentation#redefineClasses](https://docs.oracle.com/javase/8/docs/api/java/lang/instrument/Instrumentation.html#redefineClasses-java.lang.instrument.ClassDefinition...-)