Update README.md

Author: basahota

README.md

@@ -1 +1,44 @@
-# spring-boot-shedlock
+# spring-boot-shedlock
+
+### Step 1: Add Dependencies
+Add the necessary ShedLock dependencies to your pom.xml:
+```
+<!-- ShedLock Core -->
+<dependency>
+    <groupId>net.javacrumbs.shedlock</groupId>
+    <artifactId>shedlock-spring</artifactId>
+    <version>5.8.0</version>
+</dependency>
+
+<!-- ShedLock for JDBC (PostgreSQL, MySQL, etc.) -->
+<dependency>
+    <groupId>net.javacrumbs.shedlock</groupId>
+    <artifactId>shedlock-provider-jdbc-template</artifactId>
+    <version>5.8.0</version>
+</dependency>
+
+<!-- Spring Boot JDBC Starter (If not already included) -->
+<dependency>
+    <groupId>org.springframework.boot</groupId>
+    <artifactId>spring-boot-starter-jdbc</artifactId>
+</dependency>
+```
+
+### Step 2: Configure the ShedLock Table
+Since ShedLock requires a database to store lock records, create the following table:
+```
+CREATE TABLE shedlock (
+    name VARCHAR(64) PRIMARY KEY,
+    lock_until TIMESTAMP NOT NULL,
+    locked_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    locked_by VARCHAR(255) NOT NULL
+);
+```
+### Run Multiple Instances Using Command Line
+Use the -Dspring-boot.run.arguments option to specify different configurations for each instance.
+```
+mvn spring-boot:run -Dspring-boot.run.arguments="--server.port=8081"
+```
+```
+mvn spring-boot:run -Dspring-boot.run.arguments="--server.port=8082"
+```