Add hw name for iterlab

Author: YHTerrance

_data/site.json

@@ -352,6 +352,7 @@
       "slides_light_pdf": "https://raw.githubusercontent.com/rust-stuco/lectures/main/08_closures_iterators/closures_iterators-light.pdf",
       "slides_dark_html": "http://htmlpreview.github.io/?https://github.com/rust-stuco/lectures/blob/main/08_closures_iterators/closures_iterators-dark.html",
       "slides_dark_pdf": "https://raw.githubusercontent.com/rust-stuco/lectures/main/08_closures_iterators/closures_iterators-dark.pdf",
+      "hw_name": "IterLab",
       "hw_handout": "/hw/iterlab/iterlab.zip",
       "hw_writeup": "/hw/iterlab/doc/iterlab/index.html",
       "hw_released": true,