Merge pull request #478 from amanvell/patch-1

Spelling mistake
diff --git a/docguide/philosophy.md b/docguide/philosophy.md
index 0937c5b..5b3813a 100644
--- a/docguide/philosophy.md
+++ b/docguide/philosophy.md
@@ -18,7 +18,7 @@
 
 * **Scalability and interoperability** are more important than a menagerie of
   unessential features. Scale comes from simplicity, speed, and ease.
-  Interoperability comes from unadorned, digestable content.
+  Interoperability comes from unadorned, digestible content.
 
 * **Fewer distractions** make for better writing and more productive reading.