fix typos

Signed-off-by: Alfusainey Jallow <alf.jallow@gmail.com>

Author: Alfusainey

api/src/main/java/io/cloudevents/Constants.java

@@ -50,7 +50,7 @@ public class Constants {
      * <p>
      * This attribute is defined by both version 0.3 and version 1.0 of the specification.
      * 
-     * See <a href="/cloudevents/spec/blob/v1.0/spec.md#id">CloudEvents/1.0 specification</a>.
+     * See <a href="/cloudevents/spec/blob/v1.0/spec.md#id">CloudEvents/1.0 id attribute</a>.
      */
     public static final String ATTRIBUTE_ID = "id";
 
@@ -77,7 +77,7 @@ public class Constants {
      * <p>
      * This attribute is defined by both version 0.3 and version 1.0 of the specification.
      * 
-     * See <a href="/cloudevents/spec/blob/v1.0/spec.md#datacontenttype">CloudEvents/1.0 specification</a>.
+     * See <a href="/cloudevents/spec/blob/v1.0/spec.md#datacontenttype">CloudEvents/1.0 datacontenttype attribute</a>.
      */
     public static final String ATTRIBUTE_DATACONTENTTYPE = "datacontenttype";
 
@@ -86,7 +86,7 @@ public class Constants {
      * <p>
      * This attribute is defined only in version 0.3 the specification.
      * 
-     * See <a href="/cloudevents/spec/blob/v0.3/spec.md#datacontentencoding">CloudEvents/1.0 datacontenttype</a>.
+     * See <a href="/cloudevents/spec/blob/v0.3/spec.md#datacontentencoding">CloudEvents/0.3 datacontentencoding attribute</a>.
      */
     public static final String ATTRIBUTE_DATACONTENTENCODING = "datacontentencoding";
 
@@ -96,7 +96,7 @@ public class Constants {
      * <p>
      * This attribute is defined only in version 0.3 the specification.
      * 
-     * See <a href="/cloudevents/spec/blob/v1.0/spec.md#schemaurl">CloudEvents/1.0 specification</a>.
+     * See <a href="/cloudevents/spec/blob/v1.0/spec.md#schemaurl">CloudEvents/0.3 schemaurl attribute</a>.
      */
     public static final String ATTRIBUTE_SCHEMAURL = "schemaurl";
 
@@ -105,7 +105,7 @@ public class Constants {
      * <p>
      * This attribute is defined only in version 1.0 the specification.
      * 
-     * See <a href="/cloudevents/spec/blob/v1.0/spec.md#dataschema">CloudEvents/1.0 specification</a>.
+     * See <a href="/cloudevents/spec/blob/v1.0/spec.md#dataschema">CloudEvents/1.0 dataschema attribute</a>.
      */
     public static final String ATTRIBUTE_DATASCHEMA = "dataschema";
 
@@ -114,7 +114,7 @@ public class Constants {
      * <p>
      * This attribute is defined by both version 0.3 and version 1.0 of the specification.
      * 
-     * See <a href="/cloudevents/spec/blob/v1.0/spec.md#subject">CloudEvents/1.0 specification</a>.
+     * See <a href="/cloudevents/spec/blob/v1.0/spec.md#subject">CloudEvents/1.0 subject attribute</a>.
      */
     public static final String ATTRIBUTE_SUBJECT = "subject";