design/45713-workspace: fix typo

Change-Id: I55decc8d53df8ebc5e3b9873dde4d2797191965f
GitHub-Last-Rev: b3974d062ed2195b985d1b551466dfe4a5837ae4
GitHub-Pull-Request: golang/proposal#44
Reviewed-on: https://go-review.googlesource.com/c/proposal/+/393975
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/design/45713-workspace.md b/design/45713-workspace.md
index ca2124a..3bc8729 100644
--- a/design/45713-workspace.md
+++ b/design/45713-workspace.md
@@ -375,7 +375,7 @@
 the workspace the `go` command would present a consistent build list. When they
 were satisfied with their change, they could release a new version of
 `golang.org/x/mod`, update `golang.org/x/tools`'s `go.mod` to require the new
-vesion of `golang.org/x/mod`, and then turn off workspace mode with
+version of `golang.org/x/mod`, and then turn off workspace mode with
 `-workfile=off` to make sure the change behaves as expected.
 
 #### Multiple modules in the same repository that depend on each other