Fix indent of the sample code
Fix indent of the sample code

It was broken by #578.
sskhandp/EarlGrey,saurabhj80/EarlGrey,google/EarlGrey,artyom-razinov/EarlGrey,artyom-razinov/EarlGrey,sskhandp/EarlGrey,artyom-razinov/EarlGrey,sskhandp/EarlGrey,saurabhj80/EarlGrey,artyom-razinov/EarlGrey,google/EarlGrey,artyom-razinov/EarlGrey,saurabhj80/EarlGrey,saurabhj80/EarlGrey,google/EarlGrey,google/EarlGrey,sskhandp/EarlGrey,sskhandp/EarlGrey,google/EarlGrey,saurabhj80/EarlGrey