Update README file

README.md

@@ -1,11 +1,11 @@
-# RichTextView [ ![Download](https://api.bintray.com/packages/crayzhou/maven/RichTextView/images/download.svg?version=1.0.2) ](https://bintray.com/crayzhou/maven/RichTextView/1.0.2/link) [![Codacy Badge](https://api.codacy.com/project/badge/Grade/7bc46578852c4053b4472994d272f1e4)](https://www.codacy.com/manual/cray_bond/RichTextView?utm_source=github.com&utm_medium=referral&utm_content=rayworks/RichTextView&utm_campaign=Badge_Grade)
+# RichTextView [ ![Download](https://api.bintray.com/packages/crayzhou/maven/RichTextView/images/download.svg?version=2.0.0) ](https://bintray.com/crayzhou/maven/RichTextView/2.0.0/link) [![Codacy Badge](https://api.codacy.com/project/badge/Grade/7bc46578852c4053b4472994d272f1e4)](https://www.codacy.com/manual/cray_bond/RichTextView?utm_source=github.com&utm_medium=referral&utm_content=rayworks/RichTextView&utm_campaign=Badge_Grade)
 
-The customized ```TextView``` provides a way to select text from input window to fill up inner blanks.
+The customized `TextView` provides a way to select text from input window to fill up inner blanks.
 ## Import to your project
 ### Gradle
 ```groovy
 dependencies {
-    compile 'com.rayworks.library:richtextview:1.0.2'
+    implementation 'com.rayworks.library:richtextview:2.0.0'
 }
 ```
 
@@ -14,7 +14,7 @@ dependencies {
 ![Popup list](./style-popup.png)
 
 ## Instructions
-```GapFillTextView``` can be treated as normal text view, besides that, it provides 2 ways to fill the 
+`GapFillTextView` can be treated as normal text view, besides that, it provides 2 ways to fill the 
 gaps marked by '{*}'.
 
 ## Note