优化demo代码，demo添加代码使用示例

app/build.gradle

@@ -44,8 +44,9 @@ android {
 dependencies {
   implementation fileTree(include: ['*.jar'], dir: 'libs')
   testImplementation 'junit:junit:4.12'
-  implementation "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
+  implementation "com.android.support:cardview-v7:${rootProject.ext.supportLibVersion}"
   implementation "com.android.support:design:${rootProject.ext.supportLibVersion}"
+
   implementation "org.jetbrains.kotlin:kotlin-stdlib:${rootProject.ext.kotlin_version}"
   api project(':Aria')
   kapt project(':AriaCompiler')
@@ -58,7 +59,7 @@ dependencies {
   implementation project(':AppFrame')
   debugCompile 'com.squareup.leakcanary:leakcanary-android:1.5.4'
   implementation 'com.github.bumptech.glide:glide:3.7.0'
-
+  implementation 'com.pddstudio:highlightjs-android:1.5.0'
 }
 repositories {
   mavenCentral()