Fixed issues in README and documentation

README.md

@@ -1,8 +1,17 @@
 # Go database migrate
 
 This is a simple database migration library for Go. This library is intended to be used with go-bindata.
+
 We recommended using a go generate command to update the go-bindata file.
 
+## Installation
+
+You can install this library with go get
+
+```
+go get git.fuyu.moe/Fuyu/migrate
+```
+
 ## Example
 
 `files/0001.sql`:
@@ -16,7 +25,8 @@ INSERT INTO tests VALUES ('migration test');
 ```
 
 Run `go-bindata --prefix files files`
-*Optionally add the flags `-nomemcopy` and `-nometadata`*
+
+*Optionally you can add the flags `-nomemcopy` and `-nometadata`*
 
 `main.go`:
 
@@ -24,17 +34,23 @@ Run `go-bindata --prefix files files`
 package main
 
 import (
-	"migrate"
+	"database/sql"
+	"fmt"
+
+	"git.fuyu.moe/Fuyu/migrate"
+	_ "github.com/lib/pq"
 )
 
 func main() {
-	db, err = sql.Open(`postgres`, `host=/run/postgresql dbname=testdb sslmode=disable`)
+	db, err := sql.Open(`postgres`, `host=/run/postgresql dbname=testdb sslmode=disable`)
 	if err != nil {
 		fmt.Println(`Failed to connect to database. Message:`, err)
+		return
 	}
-	err = migrate.Migrate(db, 1, migrate.Options{Schema:`testschema`}, migrations.Asset}
+	err = migrate.Migrate(db, 1, migrate.Options{Schema: `testschema`}, Asset)
 	if err != nil {
 		fmt.Println(`The migration failed! Message:`, err)
+		return
 	}
 
 	fmt.Println(`The database migration/update was successful`)

migrate.go

@@ -29,7 +29,8 @@ const fileFormat = `%04d.sql`
 // AssetFunc is a function that returns the data for the given name
 type AssetFunc func(string) ([]byte, error)
 
-// Migrate executes
+// Migrate executes migrations to get to the desired version
+// Downgrading is not supported as it could result in data loss
 func Migrate(db *sql.DB, version int, o Options, asset AssetFunc) error {
 	if o.TableName == `` {
 		o.TableName = DefaultTableName