Add GitLab.com plans as products to the comparisons.yml file.

data/comparisons.yml

@@ -71,6 +71,18 @@ competitors:
   gitlab_merge_requests:
     name: 'GitLab Merge Requests'
     logo: '/images/comparison/gitlab-logo.svg'
+  gitlab_com_free:
+    name: 'GitLab.com Free Plan'
+    logo: '/images/comparison/gitlab-logo.svg'
+  gitlab_com_bronze:
+    name: 'GitLab.com Bronze Plan'
+    logo: '/images/comparison/gitlab-logo.svg'
+  gitlab_com_silver:
+    name: 'GitLab.com Silver Plan'
+    logo: '/images/comparison/gitlab-logo.svg'
+  gitlab_com_gold:
+    name: 'GitLab.com Gold Plan'
+    logo: '/images/comparison/gitlab-logo.svg'
 comparisons:
   gitlab_com_vs_github_com: