docs/tools: update pd-ctl and PD Recover
@@ -10,7 +10,7 @@ PD Recover is a disaster recovery tool of PD, used to recover the PD cluster whi
## Source code compiling
-1. [Go](https://golang.org/) Version 1.9 or later
+1. [Go](https://golang.org/) Version 1.11 or later
2. In the root directory of the [PD project](https://github.com/pingcap/pd), use the `make` command to compile and generate `bin/pd-recover`
## Usage
