Additional README fixups
Additional README fixups

Fix bad path in cmake/unix example
Fix broken link for LCB doc page

Change-Id: I8ed71d5f3ca2d1fd5df3be19ed80abf9742d9e82
Reviewed-on: http://review.couchbase.org/43646
Reviewed-by: Sergey Avseyev <87f6d5e4fd3644c3c20800cde7fd3ad1569370b3@gmail.com>
Tested-by: Mark Nunberg <e7d42768707bf23038325b0b68d4b577e5f6064a@haskalah.org>

couchbase/libcouchbase,senthilkumaranb/libcouchbase,couchbase/libcouchbase,avsej/libcouchbase,senthilkumaranb/libcouchbase,mody/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase,maxim-ky/libcouchbase,kojiromike/libcouchbase,maxim-ky/libcouchbase,avsej/libcouchbase,senthilkumaranb/libcouchbase,mody/libcouchbase,avsej/libcouchbase,avsej/libcouchbase,mody/libcouchbase,kojiromike/libcouchbase,maxim-ky/libcouchbase,PureSwift/libcouchbase,PureSwift/libcouchbase,kojiromike/libcouchbase,signmotion/libcouchbase,senthilkumaranb/libcouchbase,mnunberg/libcouchbase,avsej/libcouchbase,signmotion/libcouchbase,mnunberg/libcouchbase,PureSwift/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase,mody/libcouchbase,PureSwift/libcouchbase,mnunberg/libcouchbase,mnunberg/libcouchbase,maxim-ky/libcouchbase,avsej/libcouchbase,signmotion/libcouchbase,avsej/libcouchbase,kojiromike/libcouchbase,mnunberg/libcouchbase,signmotion/libcouchbase,couchbase/libcouchbase