NO-ISSUE Update README.md: Enhance usage instructions and add release/dev version examples

README.md

@@ -11,29 +11,70 @@ A lib that regulates the cache-based requests an application receives in terms o
 - (If link this lib with Spring) Spring Boot 2.7 (Spring Framework 5.3) or later if you are a user.
 
 ## Usage
-- Choose from the following based on your platform (There is a detailed explanation in the wiki.)
+
+Choose a module based on your platform (there is a detailed explanation in the wiki):
+
 `implementation("com.linecorp.cse.reqshield:core:{version}")`<br>
 `implementation("com.linecorp.cse.reqshield:core-reactor:{version}")`<br>
 `implementation("com.linecorp.cse.reqshield:core-kotlin-coroutine:{version}")`<br>
 `implementation("com.linecorp.cse.reqshield:core-spring:{version}")`<br>
 `implementation("com.linecorp.cse.reqshield:core-spring-webflux:{version}")`<br>
 `implementation("com.linecorp.cse.reqshield:core-spring-webflux-kotlin-coroutine:{version}")`<br>
 
+### Release versions
+
+Release versions are available from Maven Central. Add Maven Central and use a release version such as `1.0.0`:
+
+```kotlin
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation("com.linecorp.cse.reqshield:core:1.0.0")
+}
+```
+
+### Dev snapshot versions
+
+Dev versions are published as Maven snapshots and require the Maven Central Snapshot repository. Use a snapshot version
+such as `1.0.0-SNAPSHOT`:
+
+```kotlin
+repositories {
+    mavenCentral()
+    maven {
+        name = "MavenCentralSnapshots"
+        url = uri("https://central.sonatype.com/repository/maven-snapshots/")
+        mavenContent {
+            snapshotsOnly()
+        }
+    }
+}
+
+dependencies {
+    implementation("com.linecorp.cse.reqshield:core:1.0.0-SNAPSHOT")
+}
+```
+
+Snapshot versions can be updated without changing the version string. If Gradle continues to use a cached snapshot,
+refresh dependencies with `./gradlew build --refresh-dependencies`.
+
 ## Testing & Integration Tips
 
 ### Integration tests with Redis (Testcontainers)
 
 - Redis-backed integration tests using Testcontainers always run as part of module test tasks.
 - Requirements:
-  - A working local Docker daemon with network access to pull `redis:6.2.7-alpine` on first run.
-  - Sufficient permissions to start containers from tests.
+    - A working local Docker daemon with network access to pull `redis:6.2.7-alpine` on first run.
+    - Sufficient permissions to start containers from tests.
 - If you need to temporarily bypass Redis ITs locally (e.g., no Docker), run specific unit-test-only tasks or exclude the example modules when invoking Gradle.
 
 ### WebFlux null handling
 
 - `@ReqShieldCacheable(nullHandling = ...)` controls how `null` values are emitted in WebFlux:
-  - `EMIT_EMPTY` (default): map `null` to `Mono.empty()`.
-  - `ERROR`: throw an `IllegalStateException` if a `null` value is produced.
+    - `EMIT_EMPTY` (default): map `null` to `Mono.empty()`.
+    - `ERROR`: throw an `IllegalStateException` if a `null` value is produced.
 
 ### Cache key layout
 
@@ -53,9 +94,9 @@ A lib that regulates the cache-based requests an application receives in terms o
 - Every lock acquisition carries an ownership token. Only the holder that acquired the lock can release it, so a slow
   holder whose lock already expired can no longer release the lock of the next holder.
 - Recommended Redis implementation:
-  - Lock: `SET {lockKey} {token} NX PX {ttlMillis}` (atomic; never `SETNX` followed by a separate `PEXPIRE`)
-  - Unlock: compare-and-delete in a Lua script, e.g.
-    `if redis.call('get', KEYS[1]) == ARGV[1] then return redis.call('del', KEYS[1]) else return 0 end`
+    - Lock: `SET {lockKey} {token} NX PX {ttlMillis}` (atomic; never `SETNX` followed by a separate `PEXPIRE`)
+    - Unlock: compare-and-delete in a Lua script, e.g.
+      `if redis.call('get', KEYS[1]) == ARGV[1] then return redis.call('del', KEYS[1]) else return 0 end`
 - The example modules contain working implementations for `RedisTemplate`, `ReactiveRedisTemplate` and the coroutine
   extensions.