Mention Go v1.8+ is required
Remove Travis test with Go 1.7.
--- a/.travis.yml Sat Apr 07 22:52:02 2018 +0200
+++ b/.travis.yml Sat Apr 07 22:55:09 2018 +0200
@@ -1,6 +1,5 @@
language: go
go:
-- "1.7"
- "1.8"
- "1.9"
- "1.10"
--- a/README.md Sat Apr 07 22:52:02 2018 +0200
+++ b/README.md Sat Apr 07 22:55:09 2018 +0200
@@ -20,7 +20,7 @@
generate puzzles.
I haven't written the tool documentation yet.
-To build the gotak CLI utility, you can use
+To build the gotak CLI utility, you can use the following command (with Go 1.8+):
```
go get github.com/takuzu/gotak