diff --git a/doc/webp-container-spec.txt b/doc/webp-container-spec.txt
index fdcd3932..355dd3c4 100644
--- a/doc/webp-container-spec.txt
+++ b/doc/webp-container-spec.txt
@@ -47,22 +47,22 @@ support for the following:
   * Animation: An image may have multiple frames with pauses between them,
     making it an animation.
 
+Terminology & Basics
+--------------------
+
 The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD",
 "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this
 document are to be interpreted as described in BCP 14 [RFC 2119][] [RFC 8174][]
 when, and only when, they appear in all capitals, as shown here.
 
-Bit numbering in chunk diagrams starts at `0` for the most significant bit
-('MSB 0'), as described in [RFC 1166][].
-
-Terminology & Basics
---------------------
-
 A WebP file contains either a still image (that is, an encoded matrix of pixels)
 or an [animation](#animation). Optionally, it can also contain transparency
 information, a color profile and metadata. We refer to the matrix of pixels as
 the _canvas_ of the image.
 
+Bit numbering in chunk diagrams starts at `0` for the most significant bit
+('MSB 0'), as described in [RFC 1166][].
+
 Below are additional terms used throughout this document:
 
 _Reader/Writer_