Update README.md

README.md

@@ -94,7 +94,7 @@ The built code is automatically pushed to https://github.com/syuilo/misskey/tree
 3. `npm install`
 
 ### Using source code
-If you want to build Misskey manually, you can do it via build command after download source code of Misskey and install dependencies.
+If you want to build Misskey manually, you can do it via `build` command after download the source code of Misskey and install dependencies:
 
 1. `git clone -b master git://github.com/syuilo/misskey.git`
 2. `cd misskey`