diff --git a/.flowconfig b/.flowconfig
index cd4c240..b8e2e74 100644
--- a/.flowconfig
+++ b/.flowconfig
@@ -7,7 +7,6 @@ src/
 [libs]
 ./flow-typed
 
-
 [lints]
 
 [options]
diff --git a/Makefile b/Makefile
index f89f30a..ca61706 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ install:
 	@yarn
 
 cleanup:
-	@rm -rf dist coverage _book node_modules  *.log
+	@rm -rf dist coverage _book flow-typed node_modules  *.log
 
 build:
 	@echo 'Building…'
diff --git a/README.md b/README.md
index 6ab1ad1..710fbf9 100644
--- a/README.md
+++ b/README.md
@@ -35,5 +35,7 @@
 
 ### Purpose
 
+### How to Use
+
 ### License
 [MIT](License)