diff --git a/README.md b/README.md
index 438f82f..176fc3e 100644
--- a/README.md
+++ b/README.md
@@ -25,13 +25,13 @@ The following is a list of examples for using the library:
 * Creating a nil UUID
 ```
 uuid empty;
-assert(empty.is_nil());
+assert(empty.nil());
 assert(empty.size() == 16);
 ```
 * Creating a new UUID
 ```
 uuid const guid = uuids::make_uuid();
-assert(!guid.is_nil());
+assert(!guid.nil());
 assert(guid.size() == 16);
 assert(guid.version() == uuids::uuid_version::random_number_based);
 assert(guid.variant() == uuids::uuid_variant::rfc);
@@ -64,18 +64,18 @@ assert(empty != guid);
 uuid empty;
 uuid guid = uuids::make_uuid();
 
-assert(empty.is_nil());
-assert(!guid.is_nil());
+assert(empty.nil());
+assert(!guid.nil());
 
 std::swap(empty, guid);
 
-assert(!empty.is_nil());
-assert(guid.is_nil());
+assert(!empty.nil());
+assert(guid.nil());
 
 empty.swap(guid);
 
-assert(empty.is_nil());
-assert(!guid.is_nil());
+assert(empty.nil());
+assert(!guid.nil());
 ```
 * Converting to string
 ```
diff --git a/build/.gitignore b/build/.gitignore
new file mode 100644
index 0000000..45b2bb0
--- /dev/null
+++ b/build/.gitignore
@@ -0,0 +1,6 @@
+#ignore all
+/*
+
+# keep these files
+!.gitignore
+!readme.txt
\ No newline at end of file
diff --git a/build/readme.txt b/build/readme.txt
new file mode 100644
index 0000000..d9c7494
--- /dev/null
+++ b/build/readme.txt
@@ -0,0 +1,5 @@
+Create a project from this folder by running the command:
+
+cmake ..
+
+If you don't have CMake installed you can get it from https://cmake.org/
\ No newline at end of file
diff --git a/include/uuid.h b/include/uuid.h
index 7d10405..0cfa262 100644
--- a/include/uuid.h
+++ b/include/uuid.h
@@ -120,7 +120,7 @@ namespace uuids
 
       constexpr std::size_t size() const noexcept { return 16; }
 
-      constexpr bool is_nil() const noexcept
+      constexpr bool nil() const noexcept
       {
          for (size_t i = 0; i < data.size(); ++i) if (data[i] != 0) return false;
          return true;
diff --git a/test/.gitignore b/test/.gitignore
deleted file mode 100644
index bb35e58..0000000
--- a/test/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-CMakeFiles
\ No newline at end of file
diff --git a/test/test.cpp b/test/test.cpp
index 61a7edd..c1c1852 100644
--- a/test/test.cpp
+++ b/test/test.cpp
@@ -12,7 +12,7 @@ int main()
       std::cout << "Test default constructor" << std::endl;
 
       uuid empty;
-      assert(empty.is_nil());
+      assert(empty.nil());
       assert(empty.size() == 16);
    }
 
@@ -40,7 +40,7 @@ int main()
       std::cout << "Test make" << std::endl;
 
       uuid const guid = uuids::make_uuid();
-      assert(!guid.is_nil());
+      assert(!guid.nil());
       assert(guid.size() == 16);
       assert(guid.version() == uuids::uuid_version::random_number_based);
       assert(guid.variant() == uuids::uuid_variant::rfc);
@@ -106,18 +106,18 @@ int main()
       uuid empty;
       uuid guid = uuids::make_uuid();
 
-      assert(empty.is_nil());
-      assert(!guid.is_nil());
+      assert(empty.nil());
+      assert(!guid.nil());
 
       std::swap(empty, guid);
 
-      assert(!empty.is_nil());
-      assert(guid.is_nil());
+      assert(!empty.nil());
+      assert(guid.nil());
 
       empty.swap(guid);
 
-      assert(empty.is_nil());
-      assert(!guid.is_nil());
+      assert(empty.nil());
+      assert(!guid.nil());
    }
 
    {
@@ -132,7 +132,7 @@ int main()
       std::cout << "Test constexpr" << std::endl;
 
       constexpr uuid empty;
-      constexpr bool isnil = empty.is_nil();
+      constexpr bool isnil = empty.nil();
       constexpr size_t size = empty.size();
       constexpr uuid_variant variant = empty.variant();
       constexpr uuid_version version = empty.version();