v0.10.1

Changed

• Relaxed template formatter parsing so only typed formatters treat # as the
  alternate flag, allowing display placeholders such as {value:#>4} to round-
  trip without spurious TemplateError::InvalidFormatter errors.

Tests

• Extended formatter unit tests and UI derive coverage to exercise hash-filled
  display specs and ensure they parse correctly.

Documentation

• Documented the broader display formatter support (including # as a fill
  character) in the templating README section.