chore: remove experimental notice from commit signing docs#1738

bahrmichael merged 1 commit intomainsourcegraph/docs:mainfrom

agentic-batch-changes/4d59f0015beb2561f4da50001daec2cbd0083dabc66c725773d381aa7e7605absourcegraph/docs:agentic-batch-changes/4d59f0015beb2561f4da50001daec2cbd0083dabc66c725773d381aa7e7605abCopy head branch name to clipboard