Fix typo in README: libbroti -> libbrotli

README.md

diff --git a/README.md b/README.md
index cbef5c9..6b35f10 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@
     $ make && make install
 
 ngx_brotli filter module depends on
-[libbroti](https://github.com/bagder/libbrotli),
+[libbrotli](https://github.com/bagder/libbrotli),
 which must be installed on the target system for it to work.
 
 Alternatively, ngx_brotli static module can be compiled into nginx by itself