Add non-maven instructions

Author: felixbarny

log4j-ecs-layout/README.md

@@ -12,3 +12,7 @@ Add a dependency to your application
     <version>${ecs-logging-java.version}</version>
 </dependency>
 ```
+
+If you are not using a dependency management tool, like maven, you have to add both,
+`log4j2-ecs-layout` and `ecs-logging-core` jars manually to the classpath.
+For example to the `$CATALINA_HOME/lib` directory.

log4j2-ecs-layout/README.md

@@ -13,6 +13,10 @@ Add a dependency to your application
 </dependency>
 ```
 
+If you are not using a dependency management tool, like maven, you have to add both,
+`log4j2-ecs-layout` and `ecs-logging-core` jars manually to the classpath.
+For example to the `$CATALINA_HOME/lib` directory.
+
 ## Step 2: use the `EcsLayout`
 
 Instead of the usual `<PatternLayout/>`, use `<EcsLayout serviceName="my-app"/>`.

logback-ecs-encoder/README.md

@@ -13,6 +13,10 @@ Add a dependency to your application
 </dependency>
 ```
 
+If you are not using a dependency management tool, like maven, you have to add both,
+`logback-ecs-encoder` and `ecs-logging-core` jars manually to the classpath.
+For example to the `$CATALINA_HOME/lib` directory.
+
 ## Step 2: use the `EcsEncoder`
 
 ## Spring Boot applications