diff --git a/README.md b/README.md
index 08448f7..4966e2d 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,9 @@ dockerfiles
 ===========
 
 Useful collection of docker images
+
+## FAQ
+
+#### Why do you use `install.sh` scripts instead of putting the commands in the `Dockerfile`?
+
+Structuring an image this way keeps it much smaller.
diff --git a/rust/README.md b/rust/README.md
index 68b2c24..fea9521 100644
--- a/rust/README.md
+++ b/rust/README.md
@@ -1,6 +1,6 @@
 # rust
 
-Nightly Rust build including Cargo and GDB
+Lightweight nightly Rust build including Cargo and GDB
 
 ## Usage