Update radiocontrast documentation (#329)

Author: pulorsok

README.md

@@ -140,6 +140,31 @@ quark -a first.apk -a second.apk -C
 
 <img src="https://i.imgur.com/ClRWOei.png"/>
 
+### Radiocontrast
+Radiocontrast is a Quark API that quickly generates Quark rules from a specified method. It builds up 100% matched rules by using native APIs in that method. The feature lets you easily expose the behavior of a method, just like radiocontrast.
+
+For example, we want to know the behavior of a method called `Lahmyth/mine/king/ahmyth/CameraManager;->startUp(I)V,` in Ahmyth.apk.
+Here is the simplest way for Radiocontrast usage:
+```python
+from quark.radiocontrast import RadioContrast
+
+# The target APK.
+APK_PATH = "~/apk-malware-sample/Ahmyth.apk"
+
+# The method that you want to generate rules. 
+TARGET_METHOD = "Lahmyth/mine/king/ahmyth/CameraManager;->startUp(I)V"
+
+# The output directory for generated rules.
+GENERATED_RULE_DIR = "~/generated_rules"
+
+radiocontrast = RadioContrast(
+    APK_PATH, 
+    TARGET_METHOD, 
+    GENERATED_RULE_DIR
+)
+radiocontrast.rule_generate()
+```
+
 ### Parallelizing Quark
 Now Quark supports multiprocessing for analyzing APKs parallelly. By adding the option `--multi-process`, you can set the number of processes. 
 

docs/build/doctrees/addRules.doctree

@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: 8bd0aaf3aaf969644d5b5d0eb394df79
+config: c99d14db2499ef2956869462931fc195
 tags: 645f666f9bcd5a90fca523b33c5a78b7