Add download link for TileLang Python wheel for CUDA 121 and Python 3.8

Author: xwhzz

cu121/index.html

@@ -3,4 +3,5 @@ <h1>TileLang Python Wheels for CUDA 121</h1>
 <a href="https://github.com/tile-ai/tilelang/releases/download/v0.1.1/tilelang-0.1.1+ubuntu.18.4.cu121-cp310-cp310-linux_x86_64.whl#sha256=3718ea88cac3855961630afb740f276dddbe0eb37cff7dde586240f89bf34d46">tilelang-0.1.1+ubuntu.18.4.cu121-cp310-cp310-linux_x86_64.whl</a><br>
 <a href="https://github.com/tile-ai/tilelang/releases/download/v0.1.1/tilelang-0.1.1+ubuntu.18.4.cu121-cp311-cp311-linux_x86_64.whl#sha256=44ac805bb28c03944e08c35152fbad708948696d4295a4da6cf5a1fdc60426db">tilelang-0.1.1+ubuntu.18.4.cu121-cp311-cp311-linux_x86_64.whl</a><br>
 <a href="https://github.com/tile-ai/tilelang/releases/download/v0.1.1/tilelang-0.1.1+ubuntu.18.4.cu121-cp312-cp312-linux_x86_64.whl#sha256=268734d0b6d573cd1a1a8ba2705ca9a1c60104d4ebd9e6a7a9bb6f45d909b41f">tilelang-0.1.1+ubuntu.18.4.cu121-cp312-cp312-linux_x86_64.whl</a><br>
+<a href="https://github.com/tile-ai/tilelang/releases/download/v0.1.1/tilelang-0.1.1+ubuntu.18.4.cu121-cp38-cp38-linux_x86_64.whl#sha256=b1cf10f1070902e9c273ebb467d02ff66386be52d835f643083cce41fd1a57d7">tilelang-0.1.1+ubuntu.18.4.cu121-cp38-cp38-linux_x86_64.whl</a><br>
 <a href="https://github.com/tile-ai/tilelang/releases/download/v0.1.1/tilelang-0.1.1+ubuntu.18.4.cu121-cp39-cp39-linux_x86_64.whl#sha256=40f84f7f94b0ae120be386cc97e0314864a8047390ebc9d30732ed6513204aef">tilelang-0.1.1+ubuntu.18.4.cu121-cp39-cp39-linux_x86_64.whl</a><br>