message: zcash_sqlite: Add an unreliability warning to query::get_balance docs
diff: @@ -34,6 +34,11 @@ pub fn get_address<P: AsRef<Path>>(db_data: P, account: u32) -> Result<String, E
  /// Returns the balance for the account, including all mined unspent notes that we know
  /// about.
  ///
  +/// WARNING: This balance is potentially unreliable, as mined notes may become unmined due
  +/// to chain reorgs. You should generally not show this balance to users without some
  +/// caveat. Use [`get_verified_balance`] where you need a more reliable indication of the
  +/// wallet balance.
  +///
  /// # Examples
  ///
  /// ```
  