docs: 404 links fixed in readme

Author: grinish21

README.md

@@ -11,7 +11,7 @@
 
 `go-githubauth` package provides implementations of the `TokenSource` interface from the `golang.org/x/oauth2` package. This interface has a single method, Token, which returns an *oauth2.Token.
 
-- Generate GitHub Application JWT [Generating a jwt for a github app](https://docs.github.com/en/apps/creating-github-apps/authenticating-with-a-github-app/generating-a-json-web-token-jwt-for-a-github-app>)
+- Generate GitHub Application JWT [Generating a jwt for a github app](https://docs.github.com/en/apps/creating-github-apps/authenticating-with-a-github-app/generating-a-json-web-token-jwt-for-a-github-app)
 - Obtain GitHub App installation tokens [Authenticating as a GitHub App](https://docs.github.com/en/rest/authentication/authenticating-to-the-rest-api?apiVersion=2022-11-28#authenticating-with-a-token-generated-by-an-app)
 
 This package is designed to be used with the `golang.org/x/oauth2` package, which provides support for OAuth2 authentication.
@@ -77,7 +77,7 @@ func main() {
 
 First of all you need to create a GitHub App and generate a private key.
 
-To authenticate as a GitHub App, you need to generate a JWT. [Generating a jwt for a github app](https://docs.github.com/en/apps/creating-github-apps/authenticating-with-a-github-app/generating-a-json-web-token-jwt-for-a-github-app>)
+To authenticate as a GitHub App, you need to generate a JWT. [Generating a jwt for a github app](https://docs.github.com/en/apps/creating-github-apps/authenticating-with-a-github-app/generating-a-json-web-token-jwt-for-a-github-app)
 
 ```go
 package main