diff --git a/README.md b/README.md
index ae94818..ce7a859 100644
--- a/README.md
+++ b/README.md
@@ -22,15 +22,15 @@ A build script sets up dependencies, folder locations, and source code repositor
 
 Basic example: `repliqate cloud-img.qcow2 build.script`
 
-## Build Script
+## Writing a Build Script
 
-By default, each line is interpreted as a command to run in the build environment.
+By default, each line is interpreted as a shell command to run in the build environment e.g. `echo "Hello World` will result in `echo "Hello World"` being run in the VM.
 
 Lines starting with `#` are treated as comments and ignored.
 
 Lines starting with `@%` e.g. `@%echo "Hello World"` indicate to repliqate that it should output the result of the command. This is useful when debugging build steps.
 
-Lines starting with `@!` are treated as repliqate meta commands: 
+Lines starting with `@!` are treated as repliqate meta commands, these commands extend the execution environment with functionality useful for constructing and checking reproducible builds: 
 
 * `@!check <filename> <sha512hash to check>` - executes a `sha512sum` command on the given file, checks the result against the given hash, and terminates the build on failure. 
 * `@!preserve` - repliqate will skip deleting temporary disk images at shutdown (see FAQ for more information)