add doc.go

  fix `go get -d github.com/XiaoMi/soar` error

doc.go

+/*
+ * Copyright 2018 Xiaomi, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Package soar is a command-line tool for SQL optimizing and rewriting.
+package soar

doc/install.md

@@ -27,7 +27,7 @@ chmod a+x soar
 ### 生成二进制文件
 
 ```bash
-go get github.com/XiaoMi/soar/...
+go get -d github.com/XiaoMi/soar
 cd ${GOPATH}/src/github.com/XiaoMi/soar && make
 ```
 

doc/install_en.md

@@ -11,7 +11,7 @@ chmod a+x soar
 ## Build From Source
 
 ```bash
-go get github.com/XiaoMi/soar/...
+go get -d github.com/XiaoMi/soar
 cd ${GOPATH}/src/github.com/XiaoMi/soar && make
 ```