Added note on absolute paths.
Added note on absolute paths.


Former-commit-id: 0891893d9c7fa70c0707445a19d3d9761a7e962c
clab/cnn,chunyang-wen/dynet,danielhers/dynet,shuheik/dynet,xunzhang/dynet,clab/dynet,shuheik/dynet,clab/dynet,chunyang-wen/dynet,shuheik/dynet,shuheik/dynet,clab/cnn,shuheik/dynet,shuheik/dynet,clab/dynet,danielhers/dynet,danielhers/dynet,shuheik/dynet,danielhers/dynet,clab/dynet,danielhers/dynet,danielhers/dynet,chunyang-wen/dynet,chunyang-wen/dynet,clab/cnn,xunzhang/dynet,xunzhang/dynet,clab/dynet,xunzhang/dynet,clab/dynet,danielhers/dynet,clab/dynet