Typo

Closes #43
https://github.com/cuelang/cue/pull/43

GitOrigin-RevId: cf5c83e96d8a3844ae50566372937e7ff8471dbc
Change-Id: Icc938e4bcdc317af2952cff61d76748dda9205b9
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/2060
Reviewed-by: Marcel van Lohuizen <mpvl@google.com>
diff --git a/doc/tutorial/basics/templates.md b/doc/tutorial/basics/templates.md
index 154e997..7220f17 100644
--- a/doc/tutorial/basics/templates.md
+++ b/doc/tutorial/basics/templates.md
@@ -7,7 +7,7 @@
 <!-- jba: this is not in the spec, aside from the TemplateLabel grammar rule. -->
 
 One of CUE's most powerful features is templates.
-A template defines a value to be unified which each field of a struct.
+A template defines a value to be unified with each field of a struct.
 
 The template's identifier (in angular brackets) is bound to name of each
 of its sibling fields and is visible within the template value