Make it clear that jiri should be in PATH
diff --git a/getting_source.md b/getting_source.md
index a6b315a..c531c2b 100644
@@ -24,8 +24,9 @@
This script will bootstrap a development environment for the given layer in a
directory named after the layer. Upon success, the script should print a message
-recommending that you add the `.jiri_root/bin` directory to your PATH (which
-you should do).
+recommending that you add the `.jiri_root/bin` directory to your PATH. Adding
+**jiri** to your PATH is strongly recommended and is assumed by other parts of the
### Working without altering your PATH
@@ -45,4 +46,5 @@
ln -s `pwd`/scripts/fx ~/bin
-or just run the tool directly as `scripts/fx`.
+or just run the tool directly as `scripts/fx`. Make sure you have **jiri** in