message: Update for README.md
  update related to new configurable inputs
diff: @@ -8,23 +8,32 @@ This library was created to decouple the core logic of deploying serverless rend
  const path = require('path');
  const { Builder } = require("@sls-next/lambda-at-edge");
  -const nextConfigDir = '/dir/to/my/nextapp';
  -const outputDir = path.join(nextConfigDir, ".serverless_nextjs");
  +const nextConfigPath = '/path/to/my/nextapp';
  +const outputDir = path.join(nextConfigPath, ".serverless_nextjs");
  const builder = new Builder(
  - nextConfigDir,
  + nextConfigPath,
  outputDir,
  {
  cmd: './node_modules/.bin/next',
  cwd: process.cwd(),
  env: {},
  - args: ['build']
  + args: ['build'],
  + minifyHandlers: true,
  + enableHTTPCompression: true
  }
  );
  -await builder.build();
  +await builder.build()
  + .then(() => {
  + console.log("Application built successfully!");
  + })
  + .catch((e) => {
  + console.log("Could not build app due the exception: ", e);
  + process.exit(1);
  + });
  ```
  -
  +You can configure more options regarding building process. Configurable inputs you can find in 'build.ts' file ('packages/libs/lambda-at-edge/src/build.ts'). If you want to see debug logs during building, use 'await builder.build(true)' instead.
  After running the above, the output directory will contain the Lambda@Edge handlers necessary to server side render at the edge.
  ```
  @@ -32,18 +41,28 @@ After running the above, the output directory will contain the Lambda@Edge handl
  > default-lambda
  > manifest.json
  + > routes-manifest.json
  + > prerender-manifest.json
  > pages/
  - > node_modules/next-aws-cloudfront/index.js
  > index.js # handler
  > api-lambda
  > manifest.json
  + > routes-manifest.json
  > pages/api/
  - > node_modules/next-aws-cloudfront/index.js
  + > index.js # handler
  +
  + > image-lambda
  + > manifest.json
  + > routes-manifest.json
  + > images-manifest.json
  + > node_modules/...
  > index.js # handler
  ```
  -The handlers need to be attached to the `origin-request` trigger of CloudFront. The `api-lambda` edge function should be attached to a CloudFront behaviour that only triggers in the event of `/api/*` requests.
  +The handlers need to be attached to the `origin-request` trigger of CloudFront.
  +The `api-lambda` edge function should be attached to a CloudFront behaviour that only triggers in the event of `/api/*` requests.
  +The `image-lambda` edge function should be attached to a CloudFront behaviour that only triggers in the event of `_next/image*` requests.
  ### TODO:
  