Merge pull request #151 from louquillio/clear-spec-fixmes

Remove or comment some spec placeholder text.

docs/spec/02.00.00.terms.md

@@ -1,5 +1,5 @@
 
-## Terms and Definitions
+## Terms and Definitions (TBD)
 
 For the purposes of this document, the following terms and definitions apply:
 

docs/spec/03.00.00.symbols.md

@@ -1,3 +1,4 @@
+{% comment %}
 
 ## Symbols (and abbreviated terms)
 
@@ -16,3 +17,4 @@ Additional constants are defined below:
 | ------------------------ |:-----:| ----------- |
 | `SYMBOL`                 |       |
 
+{% endcomment %}

docs/spec/04.00.00.conventions.md

@@ -27,9 +27,18 @@
   * The hole and split data must be decoded before the EdgeBreaker symbols are
     decoded.
 
-
 ### Method of describing bitstream syntax
 
+Each syntax element is described by its name (using only lower case letters
+with underscore characters) and a descriptor for its method of coded
+representation. The decoding process behaves according to the value of the
+syntax element and to the values of previously decoded syntax elements.
+
+In some cases the syntax tables may use the values of other variables derived
+from syntax elements values.
+
+{% comment %}
+
 **FIXME: This section is borrowed from AV1, and should be modified for the Draco
 spec.**
 
@@ -75,3 +84,4 @@ The following table lists examples of the syntax specification format. When
 `syntax_element` appears (with bold face font), it specifies that this syntax
 element is parsed from the bitstream.
 
+{% endcomment %}