Update README

README.md

@@ -5,4 +5,38 @@ it depends on ktor-network
 
 support PTR.
 
+Supported platforms:
+1. windows64(mingwx64)
+2. linuxX64
+3. linuxArm64
+4. macosArm64
+5. jvm(11 or later)
+
+
 AirPlay2(_airplay._tcp.local.) is tested
+
+# How to use
+
+Add maven repository
+
+```kotlin
+repositories {
+    mavenCentral()
+    maven("https://repo.maven.rtast.cn/releases")
+}
+```
+
+Add dependency
+
+```kotlin
+kotlin {
+    linuxX64()
+    // Add other platforms
+
+    sourceSets {
+        commonMain.dependencies {
+            implementation("cn.rtast.nmdns:native-mdns:0.0.1")
+        }
+    }
+}
+```