Update README.md (liamg#92)

* Update README.md

the way to install binary is changed since go1.18

* Update README.md

Co-authored-by: Liam Galvin <[email protected]>
Co-authored-by: Liam Galvin <[email protected]>

Author: lavaicer

README.md

@@ -46,6 +46,12 @@ Grab a binary from the [releases page](https://github.com/liamg/traitor/releases
 CGO_ENABLED=0 go get -u github.com/liamg/traitor/cmd/traitor
 ```
 
+For go1.18:
+
+```
+CGO_ENABLED=0 go install github.com/liamg/traitor/cmd/traitor@latest
+```
+
 If the machine you're attempting privesc on cannot reach GitHub to download the binary, and you have no way to upload the binary to the machine over SCP/FTP etc., then you can try base64 encoding the binary on your machine, and echoing the base64 encoded string to `| base64 -d > /tmp/traitor` on the target machine, remembering to `chmod +x` it once it arrives.
 
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