docs(configuration): fix typo (#466)

website/docs/configuration/git.md

@@ -217,7 +217,7 @@ An array of link parsers for extracting external references, and turning them in
 Examples:
 
 - `{ pattern = "#(\\d+)", href = "https://github.com/orhun/git-cliff/issues/$1"}`
-  - Extract all GitLab issues and PRs and generate URLs linking to them. The link text will be the matching pattern.
+  - Extract all GitHub issues and PRs and generate URLs linking to them. The link text will be the matching pattern.
 - `{ pattern = "RFC(\\d+)", text = "ietf-rfc$1", href = "https://datatracker.ietf.org/doc/html/rfc$1"}`,
   - Extract mentions of IETF RFCs and generate URLs linking to them. It also rewrites the text as "ietf-rfc...".