mdbook: Fix typos in proper names and script paths
mdbook: Fix typos in proper names and script paths

Apply changes of crrev.com/c/3236708 to mdbook

BUG=none
TEST=none

Change-Id: Ida84a9157197a435156957a7eccce07de16b9cec
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3237466
Auto-Submit: Keiichi Watanabe <815e4e8f7c92a23424d7c3f51ead622bcedbc720@chromium.org>
Commit-Queue: Daniel Verkamp <72bc170b46ec491f7bdd4359a1c0bfed274de40c@chromium.org>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Reviewed-by: Daniel Verkamp <72bc170b46ec491f7bdd4359a1c0bfed274de40c@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm