update diffusers conversion script; (#213)

Signed-off-by: lawrence-cj <cjs1020440147@icloud.com>

update inference scaling results table;

Signed-off-by: lawrence-cj <cjs1020440147@icloud.com>
(cherry picked from commit 3724540327a0575cac928f3a007d115bcab8e1a6)

update README (#195)

* update images

Signed-off-by: lawrence-cj <cjs1020440147@icloud.com>

hide previous updates with a clipper;

Signed-off-by: lawrence-cj <cjs1020440147@icloud.com>

* update README.md;

Signed-off-by: lawrence-cj <cjs1020440147@icloud.com>

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Signed-off-by: lawrence-cj <cjs1020440147@icloud.com>
Co-authored-by: Enze Xie <johnny_ez@163.com>