Fix fuch->fuchsia and add note re Debug maybe working.

Debug builds work for most targets, so noted that in the docs.

Also fix an instance of fuch vs fuchsia which was missed.

Change-Id: Icff42ec6a5231c078b426a56b4118defa58d897a
Reviewed-on: https://chromium-review.googlesource.com/566995
Commit-Queue: Wez <[email protected]>
Reviewed-by: Sergey Ulanov <[email protected]>
Cr-Commit-Position: refs/heads/master@{#485757}
diff --git a/docs/fuchsia_build_instructions.md b/docs/fuchsia_build_instructions.md
index 1d9eb5a3..33103207 100644
--- a/docs/fuchsia_build_instructions.md
+++ b/docs/fuchsia_build_instructions.md
@@ -93,6 +93,9 @@
 $ gn gen out/fuchsia --args="is_debug=false dcheck_always_on=true is_component_build=false target_os=\"fuchsia\""
 ```
 
+You can also build for Debug, with `is_debug=true`, but since we don't currently
+have any Debug build-bots, it may be more broken than Release.
+
 `use_goma=true` is fine to use also if you're a Googler.
 
 ## Build
@@ -109,7 +112,7 @@
 Once it is built, you can run by:
 
 ```shell
-$ out/fuch/bin/run_base_unittests
+$ out/fuchsia/bin/run_base_unittests
 ```
 
 This packages the built binary and test data into a disk image, and runs a QEMU
@@ -122,6 +125,6 @@
 
 A useful alias (for "Build And Run Filtered") is:
 ```shell
-alias barf='ninja -C out/fuchsia base_unittests -j1000 && out/fuch/bin/run_base_unittests --test-launcher-filter-file=../../testing/buildbot/filters/fuchsia.base_unittests.filter'
+alias barf='ninja -C out/fuchsia base_unittests -j1000 && out/fuchsia/bin/run_base_unittests --test-launcher-filter-file=../../testing/buildbot/filters/fuchsia.base_unittests.filter'
 ```
 to build and run only the tests that are not excluded/known-failing on the bot.