Bump to v0.12.0 (#86)

Release v0.11.0 (#77)

- Adds .tool-versions for asdf support

Handle do-arguments in ERB-tags and release 0.10.5 (#67)

* Handles spaces after do-arguments in ERB-tags

* Release 0.10.5

Release v0.10.4 (#63)

Supports ERB-tags with if-else-end in same tag (#61)

- Fixes #60
- Release v0.10.3

Release v0.10.2 (#59)

Handles doctype more freely (#56)

- Support ERB-tags before DOCTYPE.
- Parse error on multiple DOCTYPE elements.

Release v0.10.0 (#55)

v0.9.5 - Fixes formatting of ruby comment in ERB-tag (#45)

Example:
```erb
<% # this is a comment %>
```

Output:
```diff
-<%
-
-  # this is a comment
-%>
+<% # this is a comment %>
```

0.9.4: Format empty HTML-tags as a group (#43)

```diff
<three-word-component
  :attribute1
  :attribute2
  :attribute3="value"
->
-</three-word-component>
+></three-word-component>
```