Fix examples to match Djot spec

- Use attribute syntax for link titles (not inline quotes)
- Remove :emoji: symbols (not a Djot feature)
- Fix comment syntax to {% ... %} format

Author: dereuromark

examples/advanced.djot

@@ -108,10 +108,6 @@ This was {-deleted-} from the document.
 
 Combined: The {-old{=highlighted=}-} text was {+replaced+}.
 
-## Symbols
-
-Use colons for symbols: :heart: :star: :warning:
-
 ## Smart Punctuation
 
 - Em dash --- like this
@@ -123,10 +119,8 @@ Use colons for symbols: :heart: :star: :warning:
 
 This text is visible.
 
-{% comment %}
-This text is a comment and will not appear in the output.
-It can span multiple lines.
-{% endcomment %}
+{% This is a comment and will not appear in the output.
+It can span multiple lines. %}
 
 This text is also visible.
 

examples/basics.djot

@@ -34,7 +34,7 @@ You can combine them: *_strong and emphasized_* or _*emphasized and strong*_.
 
 Here's an [inline link](https://djot.net).
 
-Here's a link with a [title](https://djot.net "Djot Homepage").
+Here's a link with a [label](https://djot.net){title="Djot Homepage"}.
 
 And here's a [reference link][djot].
 

examples/complete-document.djot

@@ -106,9 +106,9 @@ You can also style [individual phrases]{.highlight} within a paragraph.
 
 ### Task Tracking
 
+- [ ] Convert existing Markdown files
 - [x] Learn Djot basics
 - [x] Install IDE plugin
-- [ ] Convert existing Markdown files
 - [ ] Write documentation in Djot
 
 ### Chemical Formulas

examples/lists.djot

@@ -50,10 +50,10 @@ Mixed nesting:
 
 ## Task Lists
 
-- [x] Completed task
-- [ ] Incomplete task
-- [x] Another completed task
-- [ ] Yet another task to do
+- [ ] Write documentation
+- [x] Create examples
+- [x] Test features
+- [ ] Release plugin
 
 ## Definition Lists