Update changelog for v2.5.1

Signed-off-by: divyansh42 <diagrawa@redhat.com>

Fix buildah issue of using `overlay` as default storage driver

Based on the latest change in buildah for ubuntu envirnoment, it is now using overlay as default storage driver.
This release is a fix for the same. For more details see #45

Add Layers input for build using dockerfile

Fix issue of workDir not being used in the code (#49)

Signed-off-by: divyansh42 <diagrawa@redhat.com>

Modify error and info messages

• Add output message if input tags is not provided

Add message if user is using v1 version

Signed-off-by: divyansh42 <diagrawa@redhat.com>

Documentation update for support of multi arch builds

Add note about using qemu-user-static when building architecture other than amd64

Support for custom architectures

• Add archs input to allow building images for custom architectures

v0.1

Initial pre-release