Missing '0' in 'serial write buffer serial read buffer 0' help documentation

[v-katherine]

Describe the bug
Missing '0' in 'serial write buffer serial read buffer 0' help documentation

Steps to reproduce the behavior
1.Navigate to https://makecode.microbit.org/beta
2.Create or open a project.
3.Toolbox->Serial more, open the help documentation of block 'serial write buffer serial read buffer 0'.
4.Compare the block in Toolbox and help documentation.

Actual behavior:
Missing '0' in 'serial write buffer serial read buffer 0' help documentation

Expected behavior:
Should update the block in doc that same with in the Toolbox.

Screenshot:

Additional context:
1.OS: Windows11, iMac Ventura 13.6.6
2.makecode.microbit,org version: 7.0.9
3.Microsoft MakeCode version: 10.0.21