doc: Rename springbok_* to sparrow_*

Change-Id: I3413b8c471024d508457bd5289b70d242f1a3a69

GettingStarted.md

diff --git a/GettingStarted.md b/GettingStarted.md
index 8913598..3c25832 100644
--- a/GettingStarted.md
+++ b/GettingStarted.md
@@ -308,7 +308,7 @@
 testing:
 
 ```bash
-sim_springbok out/springbok_iree_no_wmmu/springbok_iree/samples/simple_vec_mul/simple_int_vec_mul_bytecode_static
+sim_springbok out/springbok_iree_no_wmmu/sparrow_iree/samples/simple_vec_mul/simple_int_vec_mul_bytecode_static
 ```
 
 The output should be shown as: