Add 'How to build with ninja' section (#473)

This commit adds 'How to build with ninja' section to 'Getting Started'
guide.

Signed-off-by: Jonghyun Park <jh1302.park@samsung.com>

diff --git a/doc/getting_started.md b/doc/getting_started.md
index 2a64df3..cc7229f 100644 (file)
--- a/doc/getting_started.md
+++ b/doc/getting_started.md
@@ -50,6 +50,15 @@ nncc$ ./nncc docker-build
 ...
 ```
 
+#### How to build _nncc_ with ninja
+
+You may build _nncc_ with ninja (instead of make) if ninja is available. Please try the following commands:
+```
+nncc$ rm -rf build
+nncc$ ./nncc configure -G Ninja
+nncc$ ./nncc build
+```
+
 #### How to build and run _nncc_ unittests
 
 _nncc_ includes various unittests to check its correctness. One may build and run these unittests via the following command: