fixups in the tutorial

also add a section about compiling programs because some found it surprising not to have one

R=rsc
CC=go-dev
http://go/go-review/1018011

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/progs/file.go b/doc/progs/file.go
index bda3890de..c55149421 100644
--- a/doc/progs/file.go
+++ b/doc/progs/file.go
@@ -10,7 +10,7 @@ import (
 )
 
 type File struct {
-	fd      int;  // file descriptor number
+	fd      int;    // file descriptor number
 	name    string; // file name at Open time
 }