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

[ganicke]

@abchatra, @riknoll - somehow number parm is dropped after decompile to blockly render:

```sig
serial.writeBuffer(serial.readBuffer(0))
```

RE: #5663

[v-katherine]

Verified this issue on the lasted makecode.microbit version: 7.0.15, it still reproduces, so I reopen it now.

[riknoll]

@v-katherine this is fixed, but you won't be able to see it because our docs pages are always tied to the live released version. The fix will show up once beta is released to live

[v-katherine]

@riknoll Okay, Thanks for your information, I will track this issue and update the result once the fix show up in beta version.

[fionama100]

I have verified this bug in the latest build: 7.0.16 and it has been fixed. Close it now.