add example run on README

README.gmi

@@ -0,0 +1,37 @@
+# md2gemtext
+
+[image: builds.sr.ht status]
+=> https://builds.sr.ht/~boringcactus/md2gemtext.svg [image: builds.sr.ht status]
+=> https://builds.sr.ht/~boringcactus/md2gemtext? builds.sr.ht status
+
+for converting Markdown into gemtext.
+=> https://gemini.circumlunar.space/docs/specification.html gemtext
+
+## standalone usage
+
+```
+cargo install md2gemtext
+md2gemtext /path/to/some/file.md /path/to/some/file.gmi
+```
+
+## library usage
+
+```
+let gemtext = md2gemtext::convert("some markdown")?;
+```
+
+## translation rules
+
+* "thematic breaks" (hr tags) are translated to `-----` on a line by itself
+* headings turn into headings, levels beyond 3 get capped at 3
+* code blocks get turned into code blocks (info strings are discarded)
+* something happens to HTML, i forget what
+* paragraphs get empty lines between them, because i think that looks better
+* block quotes get turned into quotes (multi-paragraph contiguous block quotes break though)
+* lists get turned into lists ("loose lists" probably misbehave, nested lists _definitely_ misbehave, numbering is not preserved)
+* ``markdown code spans`` retain their backticks
+* `_italics_` are surrounded by single underscores
+* `**bold**` is surrounded by double asterisks
+* `a [link](a://url) with context` turns into `a link with context` followed by `=> a://url link`
+* `an ![inline](a://url) image` turns into `an [image: inline] image` followed by `=> a://url [image: inline]`
+* if a link or image is its own paragraph, it becomes just the gemtext link, to not be redundant

src/lib.rs

@@ -211,7 +211,7 @@ impl State {
 
 #[cfg(test)]
 #[test]
-fn run_tests() {
+fn test_kitchen_sink() {
     let markdown_demo = r#"
 # h1
 ## h2
@@ -276,3 +276,11 @@ fn test_list_start() {
     let gemtext = "> hi\n\n* uh\n* ah\n";
     assert_eq!(convert(markdown), gemtext);
 }
+
+#[cfg(test)]
+#[test]
+fn test_readme() {
+    let markdown = include_str!("../README.md");
+    let gemtext = include_str!("../README.gmi");
+    assert_eq!(convert(markdown), gemtext);
+}