Update README.md

Author: sneiko

README.md

@@ -39,7 +39,7 @@ Best it usage and good luck ;)
 
 Add it in your root build.gradle at the end of repositories:
 
-```css
+```
 	allprojects {
 		repositories {
 			...
@@ -50,7 +50,7 @@ Add it in your root build.gradle at the end of repositories:
 
 **Step 2.**  Add the dependency
 
-```css
+```
 	dependencies {
 	        implementation 'com.github.JastAir:Android-BackgroundChart:{version}'
 	}