diff --git a/README b/README
index c74d2a0..5359222 100644
--- a/README
+++ b/README
@@ -4,6 +4,7 @@ I've thought for a while it would be fun and interesting to write my
 own regular expression engine using Thompson's construction algorithm,
 so here we are.
 
+
                                Grammar
 
 This engine is not going to be strictly supporting any standard
@@ -16,3 +17,18 @@ syntax; the expression syntax I intend to support follows.
 	literal ::= non-special | '\' special
 	quantifier ::= '*' | '+' | '?'
 	special ::= quantifier | '|' | '(' | ')' | '[' | ']' | '^' | '\'
+
+
+                      Building and Running Tests
+
+There are two scripts, build.sh and test.sh, which will (much to
+everybody's shock) build and run tests.  The build script uses Clang
+but the code is ISO C11 so it should compile just fine with GCC or
+something instead.
+
+	sh scripts/build.sh  # Compile library and test code
+	sh scripts/test.sh   # Run tests
+
+There is also an entr.sh script which will watch all the project's
+files and rebuild and rerun the tests on any changes, using the entr
+tool.