README.md: Ease go install-based installation instructions

Since we no longer use the replace directive in go.mod (see previous
commit) it is no possible to install hii directly using `go install`
again.

README.md

@@ -59,15 +59,11 @@ The program can be installed either using `go install` or `make`.
 
 ### go install
 
-To install to the program using `go install` run the following commands:
+To install to the program using `go install` run the following command:
 
-	$ git clone https://github.com/nmeum/hii.git
-	$ cd hii
-	$ go install
+	$ go install github.com/nmeum/hii@latest
 
-Unfortunately, using `go install` directly is currently not possible
-since `replace` directives (used in hii to supply a custom girc version)
-are [not supported for `go install`][go replace].
+Note that this will not install additional documentation files, e.g. man pages.
 
 ### make
 
@@ -133,4 +129,3 @@ with this program. If not, see <http://www.gnu.org/licenses/>.
 [runit homepage]: http://smarden.org/runit/
 [runit user]: http://smarden.org/runit/faq.html#userservices
 [sasl mechanisms]: https://ircv3.net/docs/sasl-mechs
-[go replace]: https://github.com/golang/go/issues/44840