[skip ci]Fix typo in index sign doc (#10850)

Signed-off-by: yanliang567 <yanliang.qiao@zilliz.com>
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yanliang567 2021-10-28 20:24:50 +08:00 committed by GitHub
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@ -146,7 +146,7 @@ of index data. After the index is built, record the index file directory in Inde
### 8.5.1 BuildIndex
Index building is asynchronous, so when an index building request comes, an IndexBuildID is assigned to the task and
Index building is asynchronous, so when an index building request comes, an IndexBuildID is assigned to the task, and
the task is recorded in Meta. The background process assignTaskLoop will find this task and assign it to IndexNode for
execution.
@ -156,7 +156,7 @@ The following figure shows the state machine of IndexTask during execution:
### 8.5.2 DropIndex
DropIndex deletes indexes based on IndexID. One IndexID corresponds to the index of an entire column. A column is
DropIndex deletes an index based on IndexID. One IndexID corresponds to the index of an entire column. A column is
divided into many segments, and each segment corresponds to an IndexBuildID. IndexCoord uses IndexBuildID to record
index tasks. Therefore, when DropIndex, delete all tasks corresponding to IndexBuildID corresponding to IndexID.