Android instructions format improvement in CONTRIBUTING.md (#5589)
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b34eda1..71c923b 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -103,11 +103,21 @@
Run the following steps, from the `src` directory created in the steps above:
-* `git pull upstream master` in `src/flutter` to update the Flutter Engine repo.
-* `gclient sync` to update your dependencies.
-* `./flutter/tools/gn --android --unoptimized` to prepare your build files for device-side executables (or `--android --android-cpu [x86|x64] --unoptimized` for x86/x64 emulators) .
-* `./flutter/tools/gn --unoptimized` to prepare the build files for host-side executables.
-* `ninja -C out/android_debug_unopt && ninja -C out/host_debug_unopt` to build all executables (use `out/android_debug_unopt_x64` for x86/x64 emulators).
+* Update the Flutter Engine repo.
+ * `git pull upstream master` in `src/flutter`
+* Update your dependencies
+ * `gclient sync`
+* Prepare your build files
+ * `./flutter/tools/gn --android --unoptimized` for device-side executables
+ * `./flutter/tools/gn --android --android-cpu x86 --unoptimized` for x86 emulators
+ * `./flutter/tools/gn --android --android-cpu x64 --unoptimized` for x64 emulators
+ * `./flutter/tools/gn --unoptimized` for host-side executables
+* Build your executables
+ * `ninja -C out/android_debug_unopt` for device-side executables
+ * `ninja -C out/android_debug_unopt_x86` for x86 emulators
+ * `ninja -C out/android_debug_unopt_x64` for x64 emulators
+ * `ninja -C out/host_debug_unopt` for host-side executables
+ * These commands can be combined. Ex: `ninja -C out/android_debug_unopt && ninja -C out/host_debug_unopt`
* For Googlers, consider also using the option `-j 1000` to parallelize the build using Goma.
This builds a debug-enabled ("unoptimized") binary configured to run Dart in
