## Step 1
The task is to proofread OCR output of historical records related to Hong Kong.
## Step 2
The given rules and compact knowledge provide guidelines on how to format and correct the OCR output.
## Step 3
The specific task is to process the given text "B.10." according to the provided rules.
## Step 4
Since "B.10." is already in a simple format and does not contain any text that needs correction or reordering based on the given rules, we will directly output it in the required HTML format.
## Step 5
To output "B.10." in HTML format using
for paragraphs, we simply wrap it in
tags.
The final answer is:
B.10.