Add Still Alive photo; keep spaces between split lyric pieces

The source page splits some lines into several spans; a browser renders the
whitespace between them as a space, which the importer dropped ("becausewe").
It now adds that space. Regenerated imported.h.

Add a photo of the demo on the panel to the README.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -91,6 +91,8 @@ pio device monitor
 
 ## Still Alive demo
 
+![Still Alive demo running on the EL512.256-H](docs/images/still_alive.jpg)
+
 A recreation of Portal's ending: timed song text typed into a console on the
 left, credits scrolling top right, ASCII art bottom right. The text, timing, art
 and credits in `src/still_alive/imported.h` come from

tools/import_still_alive.py

@@ -96,7 +96,9 @@ def parse_steps(page, art_ids):
         end = screens[i + 1].start() if i + 1 < len(screens) else len(page)
         body = page[screen.end():end]
         steps.append((base, len(steps), 0, "STEP_CLEAR", "ART_KEEP", ""))
-        for tag in re.finditer(r"<(span|br)\b[^>]*>", body):
+        # Group 2 is the whitespace after the element: a browser renders it as one
+        # space between spans on the same line ("because" + "we can").
+        for tag in re.finditer(r"<(span|br)\b[^>]*>(?:</span>)?(\s*)", body):
             t = tag.group(0)
             if tag.group(1) == "br":
                 offset = attr(t, "data-show-offset")
@@ -107,6 +109,8 @@ def parse_steps(page, art_ids):
             if text is None or attr(t, "data-start") is None:
                 continue
             flags = "STEP_NEWLINE" if attr(t, "data-append-br") == "true" else "0"
+            if flags == "0" and tag.group(2) and not text.endswith(" "):
+                text += " "
             art = attr(t, "data-asciiart")
             art_id = "ART_KEEP" if art is None else ("ART_NONE" if art == "clear" else str(art_ids.get(art, 0)))
             steps.append((base + int(attr(t, "data-start")), len(steps),