MNEMONIC-650: Redesign the logo completed
MNEMONIC-650: Redesign the logo completed

Signed-off-by: Chunyong He <bf9ff5fa0ec46a1a27433cdd46accb9a25e7c5ef@gmail.com>

yzz127/incubator-mnemonic,yzz127/incubator-mnemonic,yzz127/incubator-mnemonic,yzz127/incubator-mnemonic