Update usage file under s2i.

[tsaxena18]

The section has not been updated with the new changes.
The current text describes the command usage as :
./create_builder_image.sh -l -v -i
where
[-l|--installers-location] : Location where TIBCO BusinessEvents and other required installers are located [required]
[-d|--docker-file] : Dockerfile to be used for generating image.(default Dockerfile) [optional]"
For example:
./create_builder_image.sh -l /Users/test/BE_Installers

But currently it is :
[apps@beqacentos7 s2i]$ ./create_builder_image.sh -h

Usage: create_builder_image.sh

[-l|--installers-location] : Location where TIBCO BusinessEvents and other required installers are located [required]

[-d|--docker-file] : Dockerfile to be used for generating image.(default Dockerfile) [optional]

[--disable-tests] : Disables docker unit tests on created image. [optional]

[--gv-providers] : Names of GV providers to be included in the image. Supported value(s) - consul [optional]

[-r|--repo] : The builder image Repository (example - s2ibuilder:latest) [required]

[-h|--help] : Print the usage of script [optional]

NOTE : supply long options with '='

[nareshkumarthota]

updated the required changes in branch fix-issue-108. kindly confirm the same.

[tsaxena18]

Checked from fix-issue-108 branch , the documentation part has been updated correctly.