faq

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.

rust/README.md

@@ -1,6 +1,6 @@
 # rust
 
-Nightly Rust build including Cargo and GDB
+Lightweight nightly Rust build including Cargo and GDB
 
 ## Usage