mention classes in README

README.md

@@ -16,6 +16,25 @@ def main() -> int:
     return 0
 ```
 
+Jou has classes. They can have methods, but that's about it:
+otherwise Jou classes are just like structs in C.
+
+```python
+import "stdlib/io.jou"
+
+
+class Greeting:
+    target: byte*
+
+    def show(self) -> None:
+        printf("Hello %s\n", self->target)
+
+
+def main() -> int:
+    g = Greeting{target="World"}
+    g.show()    # Output: Hello World
+```
+
 See the [examples](./examples/) and [tests](./tests/) directories for more example programs
 or read [the Jou tutorial](./doc/tutorial.md).
 

doctest.sh

@@ -1,18 +1,18 @@
 #!/usr/bin/env bash
 #
-# This file runs code snippets in doc/*.md files.
+# This file runs code snippets in markdown files.
 
 set -e -o pipefail
 
 for arg in "$@"; do
     if [[ "$arg" =~ ^- ]]; then
-        echo "Usage: $0 [doc/file1.md doc/file2.md ...]" >&2
+        echo "Usage: $0 [file1.md file2.md ...]" >&2
         exit 2
     fi
 done
 
 if [ $# == 0 ]; then
-    files=(doc/*.md)
+    files=(README.md doc/*.md)
 else
     files=("$@")
 fi