Fix link error in README.md

[yunwei37]

No description provided.

[codecov]

Codecov Report

Merging #131 (469b7b5) into main (e484cb2) will decrease coverage by 0.55%.
Report is 1 commits behind head on main.
The diff coverage is 100.00%.

❗ Current head 469b7b5 differs from pull request most recent head 23a44c1. Consider uploading reports for the commit 23a44c1 to get more accurate results

@@            Coverage Diff             @@
##             main     #131      +/-   ##
==========================================
- Coverage   78.87%   78.33%   -0.55%     
==========================================
  Files          14       14              
  Lines        1335     1334       -1     
==========================================
- Hits         1053     1045       -8     
- Misses        282      289       +7     

Files Changed	Coverage Δ
runtime/wasm-bpf-rs/src/utils.rs	64.17% <100.00%> (ø)

... and 2 files with indirect coverage changes