[ImgBot] Optimize images

*Total -- 44.74kb -> 32.57kb (27.2%)

/docs/graph/images/tree-divide1.png -- 14.90kb -> 10.19kb (31.62%)
/docs/graph/images/tree-divide2.png -- 29.84kb -> 22.39kb (24.99%)

diff --git a/docs/graph/images/tree-divide1.png b/docs/graph/images/tree-divide1.png
index 482149d..8088202 100644 (file)
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diff --git a/docs/graph/images/tree-divide2.png b/docs/graph/images/tree-divide2.png
index 6afcccc..c0d32a3 100644 (file)
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