update readme

README.md

@@ -1,6 +1,7 @@
 # greedy - a simple speedreader for your terminal
 
-`go get -u -v github.com/skuzzymiglet/greedy`
+If you have Go: `go get -u -v github.com/skuzzymiglet/greedy`
+If not, grab a release off the releases tab
 
 ```sh
 echo "hello stdin" | greedy # read from stdin
@@ -20,4 +21,4 @@ greedy https://www.arp242.net/read-stdin.html # read articles from the web
 + `<`: move text left
 + `>`: move text right
 
-<a href="https://asciinema.org/a/dE2t5QYhS8cCbHhmVd1c4qDrY" target="_blank"><img src="https://asciinema.org/a/dE2t5QYhS8cCbHhmVd1c4qDrY.svg" style="min-width: 100%;"/></a>
+[![asciicast](https://asciinema.org/a/lgoSRtQU4cbeS33MJu71yNgd6.svg)](https://asciinema.org/a/lgoSRtQU4cbeS33MJu71yNgd6)