[fix][doc] osx install guide
broken link from the readme
missing space from the markdown heading
@@ -184,7 +184,7 @@ virtualenv -p /usr/bin/python3 .
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## Mac OS X
-For installation instructions for Mac OS X see [Mac OS X Installation Guide](installation_macosx.md) documentation.
+For installation instructions for Mac OS X see [Mac OS X Installation Guide](install_macosx.md) documentation.
## Docker
To run CodeChecker server in Docker see the [Docker](web/docker.md) documentation.
