Documentation/upgrades: remove "./bin"
@@ -19,18 +19,18 @@ Highlighted breaking changes in 3.4.
`ETCDCTL_API=3` is now the default.
```diff
-./bin/etcdctl set foo bar
+etcdctl set foo bar
Error: unknown command "set" for "etcdctl"
--./bin/etcdctl set foo bar
-+ETCDCTL_API=2 ./bin/etcdctl set foo bar
+-etcdctl set foo bar
++ETCDCTL_API=2 etcdctl set foo bar
bar
-ETCDCTL_API=3 ./bin/etcdctl put foo bar
+ETCDCTL_API=3 etcdctl put foo bar
OK
--ETCDCTL_API=3 ./bin/etcdctl put foo bar
-+./bin/etcdctl put foo bar
+-ETCDCTL_API=3 etcdctl put foo bar
++etcdctl put foo bar
```
#### Deprecated `etcd --ca-file` and `etcd --peer-ca-file` flags
