Code comment inconsistencies

[YichiZhang0613]

In fsst-develop/src/lib.rs, the comment requires symbols.len() <= 256 while code checks symbols.len() < 256.

pub const FSST_CODE_BASE: u16 = 256;

/// # Panics
    ///
    /// If the provided symbol table has length greater than 256
    pub fn new(symbols: &'a [Symbol], lengths: &'a [u8]) -> Self {
        assert!(
            symbols.len() < FSST_CODE_BASE as usize,
            "symbol table cannot have size exceeding 255"
        );

        Self { symbols, lengths }
    }

This comment seem to require decoded.len() >= compressed.len() + 7, while code check it inconsistently.

/// Decompress a slice of codes into a provided buffer.
    ///
    /// The provided `decoded` buffer must be at least the size of the decoded data, plus
    /// an additional 7 bytes.
    ///
    /// ## Panics
    ///
    /// If the caller fails to provide sufficient capacity in the decoded buffer. An upper bound
    /// on the required capacity can be obtained by calling [`Self::max_decompression_capacity`].
pub fn decompress_into(&self, compressed: &[u8], decoded: &mut [MaybeUninit<u8>]) -> usize {
        // Ensure the target buffer is at least half the size of the input buffer.
        // This is the theortical smallest a valid target can be, and occurs when
        // every input code is an escape.
        assert!(
            decoded.len() >= compressed.len() / 2,
            "decoded is smaller than lower-bound decompressed size"
        );
...
}