Typo: missing word

Change-Id: I85dab0d047c83ef9ab04fc5db2c2b11bccf20f0c
diff --git a/src/source/initializing.md b/src/source/initializing.md
index 6899d56..410e20a 100644
--- a/src/source/initializing.md
+++ b/src/source/initializing.md
@@ -142,7 +142,7 @@
 
 There is a bug in gmake 3.82 that prevents android from building.  You can install version 3.81 using MacPorts by taking the following steps:
 
-- Edit `/opt/local/etc/macports/sources.conf` and a line that says 
+- Edit `/opt/local/etc/macports/sources.conf` and add a line that says
     
         file:///Users/Shared/dports