Explain how to speed up crawling

README.md

@@ -22,7 +22,7 @@ You can start the crawler in detached mode by passing --detach to it.
 
 Ensure you have at least 3GB of memory as the Elasticsearch stack docker will require 2GB.
 
-# How to start the crawling process
+# How to initiate crawling
 
 Since the API is exposed on localhost:15005, one can use it to start the crawling process:
 
@@ -42,6 +42,17 @@ $ docker run creekorful/trandoshanctl --api-uri <uri> schedule https://www.faceb
 
 this will schedule given URL for crawling.
 
+## How to speed up crawling
+
+If one want to speed up the crawling process, he can scale the instance of crawling process in order
+to increase performances. This may be done by issuing the following command after the crawler is started:
+
+```sh
+$ ./scripts/scale.sh crawler=5
+```
+
+this will set the number of crawler instance to 5.
+
 # How to view results
 
 ## Using trandoshanctl

scripts/log.sh

@@ -1,3 +0,0 @@
-#!/bin/bash
-
-./scripts/exec.sh logs "$@"

scripts/scale.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+./scripts/exec.sh scale "$@"