Add TsFileVectorIndexCase image (#2)

diff --git a/docs/SystemDesign/TsFile/TsFile/tsFileVectorIndexCase5.png b/docs/SystemDesign/TsFile/TsFile/tsFileVectorIndexCase5.png
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index 0000000..423edc7
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+++ b/docs/SystemDesign/TsFile/TsFile/tsFileVectorIndexCase5.png
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diff --git a/docs/SystemDesign/TsFile/TsFile/tsFileVectorIndexCase6.png b/docs/SystemDesign/TsFile/TsFile/tsFileVectorIndexCase6.png
new file mode 100644
index 0000000..afb13eb
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+++ b/docs/SystemDesign/TsFile/TsFile/tsFileVectorIndexCase6.png
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diff --git a/docs/SystemDesign/TsFile/TsFile/tsFileVectorIndexCase7.png b/docs/SystemDesign/TsFile/TsFile/tsFileVectorIndexCase7.png
new file mode 100644
index 0000000..67b7ca8
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+++ b/docs/SystemDesign/TsFile/TsFile/tsFileVectorIndexCase7.png
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