fixed typos
diff --git a/Plan9.md b/Plan9.md
index 298a0e4..ab18005 100644
--- a/Plan9.md
+++ b/Plan9.md
@@ -56,7 +56,7 @@
However, since the Go 1.4 runtime wasn't mature enough on Plan 9, we recommend you to bootstrap from a more recent version of Go, using another operating system.
-## Boostraping from Plan 9
+## Bootstrapping from Plan 9
First, install Go 1.4:
@@ -87,7 +87,7 @@
```
Go is now ready to use.
-## Bootstraping from another operating system
+## Bootstrapping from another operating system
First, you must have installed Go on this operating system, following the [Go installation instructions](https://golang.org/doc/install).
