webp-lossless-bitstream-spec: number all sections
this makes the structure more consistent
Change-Id: Ie6c8b42506be73e565cfc4d39108eb4d8c038003
diff --git a/doc/webp-lossless-bitstream-spec.txt b/doc/webp-lossless-bitstream-spec.txt
index 906d7ef..0edb768 100644
--- a/doc/webp-lossless-bitstream-spec.txt
+++ b/doc/webp-lossless-bitstream-spec.txt
@@ -229,7 +229,7 @@
different types.
-### Predictor Transform
+### 4.1 Predictor Transform
The predictor transform can be used to reduce entropy by exploiting the
fact that neighboring pixels are often correlated. In the predictor
@@ -376,7 +376,7 @@
on the same row as the current pixel is instead used as the TR-pixel.
-### Color Transform
+### 4.2 Color Transform
\[AMENDED2\]
@@ -488,7 +488,7 @@
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-### Subtract Green Transform
+### 4.3 Subtract Green Transform
The subtract green transform subtracts green values from red and blue
values of each pixel. When this transform is present, the decoder needs
@@ -510,7 +510,7 @@
full-blown color transform.
-### Color Indexing Transform
+### 4.4 Color Indexing Transform
If there are not many unique pixel values, it may be more efficient to
create a color index array and replace the pixel values by the array's
@@ -1079,7 +1079,7 @@
of pixels (xsize * ysize).
-#### Basic Structure
+#### 7.1 Basic Structure
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<format> ::= <RIFF header><image size><image stream>
@@ -1087,7 +1087,7 @@
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-#### Structure of Transforms
+#### 7.2 Structure of Transforms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<optional-transform> ::= (1-bit value 1; <transform> <optional-transform>) |
@@ -1104,7 +1104,7 @@
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-#### Structure of the Image Data
+#### 7.3 Structure of the Image Data
\[AMENDED2\]
