To show full article instead of excerpts on home page:
Go to content.php line 52
<?php if ( is_home() || is_search() || is_category() || is_tag() || is_author() ) : // Display Excerpts for Search, home, category and tag pages ?>
Replace that line with
<?php if ( is_search() || is_category() || is_tag() || is_author() ) : // Display Excerpts for Search, category and tag pages ?>
Let me know if it works as you wanted.