Add replacement patterns to docs/conf.py

Some of the links in documentation lead to datastax repositories.
This change adds patterns that should cover any links to classes or
directories of the codebase and make them point to scylladb fork instead.

Author: Bouncheck

docs/source/conf.py

@@ -184,7 +184,11 @@ def setup(app):
     current_slug = os.getenv("SPHINX_MULTIVERSION_NAME", "stable")
     replacements = {
         r'docs.datastax.com/en/drivers/java\/(.*?)\/': "java-driver.docs.scylladb.com/" + current_slug + "/api/",
-        r'java-driver.docs.scylladb.com\/(.*?)\/': "java-driver.docs.scylladb.com/" + current_slug + "/"
+        r'java-driver.docs.scylladb.com\/(.*?)\/': "java-driver.docs.scylladb.com/" + current_slug + "/",
+        r'github.com\/apache\/cassandra-java-driver\/blob\/4.x\/': "github.com/scylladb/java-driver/blob/scylla-4.x/",
+        r'github.com\/apache\/cassandra-java-driver\/tree\/4.x\/': "github.com/scylladb/java-driver/tree/scylla-4.x/",
+        r'github.com\/datastax\/java-driver\/blob\/4.x\/': "github.com/scylladb/java-driver/blob/scylla-4.x/",
+        r'github.com\/datastax\/java-driver\/tree\/4.x\/': "github.com/scylladb/java-driver/tree/scylla-4.x/"
     }
     app.add_config_value('replacements', replacements, True)
     app.connect('source-read', replace_relative_links)