Move ios documentation from //docs to //docs/ios.

docs/ios/infra.md

Index: docs/ios/infra.md
diff --git a/docs/ios_infra.md b/docs/ios/infra.md
similarity index 97%
copy from docs/ios_infra.md
copy to docs/ios/infra.md
index 3ab0d7f299ce99a398476b5e23ec78ac0a0a1e8a..80a1303dc4ccc15a492ccdff747feb64d96be95f 100644
--- a/docs/ios_infra.md
+++ b/docs/ios/infra.md
@@ -339,26 +339,26 @@ reporting server where they can be used to symbolicate stack traces.
 
 If `artifact` is a directory, you must specify `"compress": true`.
 
-[analyzer]: ../tools/mb
+[analyzer]: ../../tools/mb
 [breakpad]: https://chromium.googlesource.com/breakpad/breakpad
 [buildbucket]: https://cr-buildbucket.appspot.com
 [chromium.fyi]: https://build.chromium.org/p/chromium.fyi/waterfall
 [chromium.mac]: https://build.chromium.org/p/chromium.mac
-[clang]: ../tools/clang
+[clang]: ../../tools/clang
 [commit queue]: https://dev.chromium.org/developers/testing/commit-queue
 [gitiles]: https://gerrit.googlesource.com/gitiles
-[GN]: ../tools/gn
-[instructions]: ./ios_build_instructions.md
+[GN]: ../../tools/gn
+[instructions]: ./build_instructions.md
 [iOS recipes]: https://chromium.googlesource.com/chromium/tools/build/+/master/scripts/slave/recipes/ios
-[iOS simulator]: ../testing/iossim
+[iOS simulator]: ../../testing/iossim
 [recipe module]: https://chromium.googlesource.com/chromium/tools/build/+/master/scripts/slave/recipe_modules/ios
 [recipes]: https://chromium.googlesource.com/infra/infra/+/HEAD/doc/users/recipes.md
 [simulator]: https://developer.apple.com/library/content/documentation/IDEs/Conceptual/iOS_Simulator_Guide/Introduction/Introduction.html
-[src/ios/build/bots]: ../ios/build/bots
-[src/ios/build/bots/scripts]: ../ios/build/bots/scripts
+[src/ios/build/bots]: ../../ios/build/bots
+[src/ios/build/bots/scripts]: ../../ios/build/bots/scripts
 [swarming]: https://github.com/luci/luci-py/tree/master/appengine/swarming
 [swarming server]: https://chromium-swarm.appspot.com
-[test runner]: ../ios/build/bots/scripts/test_runner.py
+[test runner]: ../../ios/build/bots/scripts/test_runner.py
 [tools/build]: https://chromium.googlesource.com/chromium/tools/build
 [try job access]: https://www.chromium.org/getting-involved/become-a-committer#TOC-Try-job-access
 [try server]: https://build.chromium.org/p/tryserver.chromium.mac/waterfall