add repology repos badge
diff --git a/README.md b/README.md
index bd93e78..5503d64 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,10 @@ $ make
$ sudo make install
```
+Alternatively, you might be able to install bzip3 using your system's package manager:
+
+[](https://repology.org/project/bzip3/versions)
+
## Perl source code benchmark
First, I have downloaded every version of Perl5 ever released and decompressed them.
