README.adoc in relaton-ietf-1.3.0 vs README.adoc in relaton-ietf-1.4.0

@@ -43,11 +43,11 @@
 => #<RelatonIetf::IetfBibliographicItem:0x007fd1875e7f58
 ...
 
 # Return nil if document doesn't exist.
 RelatonIetf::IetfBibliography.search '1111'
-1111.xml: not recognised for RFC
+RelatonBib::RequestError: 1111: not recognised for RFC
 => nil
 ----
 
 === Serialization
 
@@ -57,52 +57,13 @@
 =>"<bibitem id="RFC8341">
   <fetched>2019-06-05</fetched>
   <title format="text/plain" language="en" script="Latn">Network Configuration Access Control Model</title>
   <uri type="src">https://www.rfc-editor.org/info/rfc8341</uri>
   <docidentifier type="IETF">RFC 8341</docidentifier>
+  <docidentifier type=\"rfc-anchor\">RFC8341</docidentifier>
   <docidentifier type="DOI">10.17487/RFC8341</docidentifier>
-  <date type="published">
-    <on>2018-03</on>
-  </date>
-  <contributor>
-    <role type="author"/>
-    <person>
-      <name>
-        <completename language="en">A. Bierman</completename>
-      </name>
-      <affiliation>
-        <organization>
-          <name>IETF</name>
-          <abbreviation>IETF</abbreviation>
-        </organization>
-      </affiliation>
-    </person>
-  </contributor>
-  <contributor>
-    <role type="author"/>
-    <person>
-      <name>
-        <completename language="en">M. Bjorklund</completename>
-      </name>
-      <affiliation>
-        <organization>
-          <name>IETF</name>
-          <abbreviation>IETF</abbreviation>
-        </organization>
-      </affiliation>
-    </person>
-  </contributor>
-  <language>en</language>
-  <script>Latn</script>
-  <series type="main">
-    <title format="text/plain" language="en" script="Latn">STD</title>
-    <number>91</number>
-  </series>
-  <series type="main">
-    <title format="text/plain" language="en" script="Latn">RFC</title>
-    <number>8341</number>
-  </series>
+  ....
 </bibitem>"
 ----
 With `bibdata: true` option XML output wrapped with `bibdata` element and `ext` element added.
 [source,ruby]
 ----
@@ -120,16 +81,19 @@
 
 === Parse a file locally
 
 [source,ruby]
 ----
-item = Relaton::Provider::Ietf.from_rfcxml File.read("rfc.xml")
+item = Relaton::Provider::Ietf.from_rfcxml File.read("spec/examples/rfc.xml")
 => #<RelatonIetf::IetfBibliographicItem:0x007fa8cda79ab8
 ...
 
 item.to_xml bibdata: true
 =>"<bibdata>
-...
+  <fetched>2020-09-15</fetched>
+  <title format="text/plain" language="en" script="Latn">ACVP Secure Hash Algorithm (SHA) JSON Specification</title>
+  ...
+</bibdata>"
 ----
 
 === Create bibliographic item form YAML
 [source,ruby]
 ----