diff --git a/lib/asciidoctor/github-raw-content-include-processor/README.adoc b/lib/asciidoctor/github-raw-content-include-processor/README.adoc
index 6b1dcbe..7c1f204 100644
--- a/lib/asciidoctor/github-raw-content-include-processor/README.adoc
+++ b/lib/asciidoctor/github-raw-content-include-processor/README.adoc
@@ -12,10 +12,17 @@ The following is the basic form of using this include processor.
 
 [source, asciidoc]
 ----
-include::github:$OWNER/$REPO[]
+\include::github:$OWNER/$REPO[]
 ----
 
 
+== Extra notes
+
+The include processor will use GitHub API.
+It can create authorized requests by setting a token in `GITHUB_API_BEARER_TOKEN` environment variable.
+For instructions on how to get a token, you can refer to link:https://docs.github.com/en/rest/guides/getting-started-with-the-rest-api?apiVersion=2022-11-28#authenticating[respective documentation].
+
+
 == Attributes
 
 - `path` for the path of the file to be included.
diff --git a/lib/asciidoctor/swhid-include-processor/README.adoc b/lib/asciidoctor/swhid-include-processor/README.adoc
index 6c8ed46..dbdc29d 100644
--- a/lib/asciidoctor/swhid-include-processor/README.adoc
+++ b/lib/asciidoctor/swhid-include-processor/README.adoc
@@ -34,6 +34,7 @@ This include processor also respects the safe mode setting.
 This means in order to permit including by SWHID, you have to permit link:https://docs.asciidoctor.org/asciidoc/latest/directives/include-uri/[includes by URIs].
 
 Lastly, this include processor uses the Software Heritage API which includes a limitation.
+You could create authorized requests by setting `SWH_API_BEARER_TOKEN` environment variable with a token.
 
 
 == Example usage