fixed incorrect link in readme (#434)

Author: rolfyone

README.md

@@ -66,7 +66,7 @@ Download the latest release from the [Releases page](https://github.com/ethpanda
 
 ### Install via bash script
 
-View the install script [here](./installer.sh). You can run the following to install:
+View the install script [here](./install.sh). You can run the following to install:
 ```
 curl -sL https://raw.githubusercontent.com/ethpandaops/xatu/master/install.sh | bash
 ```