Update screenshot to show `;` EOL
Update changelogs
Add EOL to README features list
Failing tests for GROUP -> SIGIL_MODIFIERS transition

Fails due to missing check at terminator for group to jump to
SIGIL_MODIFIERS if the GROUP is a sigil.
Add support for sigil modifiers to GROUPS

Fixes #34

When SIGIL_MODIFIERS was added, it was only added for heredocs and was
missed for normal groups.
Update screenshot to show group sigil modifiers
Update testData with support for group sigil modifiers
SIGIL_MODIFIERS lexer tests

Tests that SIGIL_MODIFIERS is reached and correct for both group and
heredoc sigils.
Land #36, Sigil modifiers for groups

Fixes #34
Update changelogs