Fix trivial typos
Fix trivial typos

Fix ":" in code examples to ";"

retrieva/pficommon,takei-yuya/pficommon,retrieva/pficommon,pfi/pficommon,pfi/pficommon,pfi/pficommon,retrieva/pficommon,retrieva/pficommon,takei-yuya/pficommon,retrieva/pficommon,takei-yuya/pficommon,takei-yuya/pficommon,pfi/pficommon