added errata table for C

sp800-63c.md

@@ -17,4 +17,5 @@ description: "NIST Special Publication 800-63C"
 {% include_relative sp800-63c/sec10_usability.md %}
 {% include_relative sp800-63c/sec11_examples.md %}
 {% include_relative sp800-63c/references.md %}
+{% include_relative sp800-63c/errata.md %}
 

sp800-63c/cover.md

@@ -195,3 +195,5 @@ The terms "CAN" and "CANNOT" indicate a possibility and capability, whether mate
 [11. Assertion Examples](#examples)
 
 [12. References](#references)
+
+[Errata](#errata)

sp800-63c/errata.md

@@ -0,0 +1,18 @@
+<div class="breaker"></div>
+<a name="errata"></a>
+
+<div class="text-center" markdown="1">
+## Errata
+</div> 
+
+This table contains changes that have been incorporated into Special Publication 800-63C. Errata updates can include corrections, clarifications, or other minor changes in the publication that are either editorial or substantive in nature.
+
+|Date|Type|Change|Location
+|----|----|----|----|
+|2017-12-01|Editorial|Bearer assertion, signed by IdP.|§5|
+||Substantive|Refined the requirements about processing of attributes|§5.2|
+||Substantive|Clarified the language, incorporated privacy objectives language, and specified that consent is explicit|§9.1|
+||Editorial|Added NISTIR 8062 as a reference|§12.1|
+|2019-XX-XX|Editorial|Clarified that assertions contain attributes about authentication event and subscriber|Abstract, §1, §2|
+||Editorial|Refined language on transmission requirements|§4.2|
+||Editorial|Removed term "authorization credential" in favor of "authorization component"|§6, §7|