sembr nit (missed by tool)

Author: tshepang

src/doc/rustc-dev-guide/README.md

@@ -2,8 +2,8 @@
 
 
 This is a collaborative effort to build a guide that explains how rustc works.
-The aim of the guide is to help new contributors get oriented
-to rustc, as well as to help more experienced folks in figuring out
+The aim of the guide is to help new contributors get oriented to rustc,
+as well as to help more experienced folks in figuring out
 some new part of the compiler that they haven't worked on before.
 
 [You can read the latest version of the guide here.](https://rustc-dev-guide.rust-lang.org/)