Docs: Fix inconsitencies in 2K arch

doc/administration/reference_architectures/2k_users.md

@@ -24,7 +24,7 @@ For a full list of reference architectures, see
 | Load balancer<sup>3</sup>  | 1     | 2 vCPU, 1.8 GB memory  | `n1-highcpu-2`  | `c5.large`   | `F2s v2` |
 | PostgreSQL<sup>1</sup>     | 1     | 2 vCPU, 7.5 GB memory  | `n1-standard-2` | `m5.large`   | `D2s v3` |
 | Redis<sup>2</sup>          | 1     | 1 vCPU, 3.75 GB memory | `n1-standard-1` | `m5.large`   | `D2s v3` |
-| Gitaly                     | 1     | 4 vCPU, 15 GB memory<sup>5</sup>   | `n1-standard-4` | `m5.xlarge`  | `D4s v3` |
+| Gitaly<sup>5</sup>         | 1     | 4 vCPU, 15 GB memory<sup>5</sup>   | `n1-standard-4` | `m5.xlarge`  | `D4s v3` |
 | Sidekiq<sup>6</sup>        | 1     | 4 vCPU, 15 GB memory   | `n1-standard-4` | `m5.xlarge`  | `D4s v3` |
 | GitLab Rails<sup>6</sup>   | 2     | 8 vCPU, 7.2 GB memory  | `n1-highcpu-8`  | `c5.2xlarge` | `F8s v2` |
 | Monitoring node            | 1     | 2 vCPU, 1.8 GB memory  | `n1-highcpu-2`  | `c5.large`   | `F2s v2` |
@@ -35,7 +35,6 @@ For a full list of reference architectures, see
 2. Can be optionally run on reputable third-party external PaaS Redis solutions. See [Provide your own Redis instance](#provide-your-own-redis-instance) and [Recommended cloud providers and services](index.md#recommended-cloud-providers-and-services) for more information.
 3. Can be optionally run on reputable third-party load balancing services (LB PaaS). See [Recommended cloud providers and services](index.md#recommended-cloud-providers-and-services) for more information.
 4. Should be run on reputable Cloud Provider or Self Managed solutions. See [Configure the object storage](#configure-the-object-storage) for more information.
-4. Should be run on reputable Cloud Provider or Self Managed solutions. More information can be found in the [Configure the object storage](#configure-the-object-storage) section.
 5. Gitaly specifications are based on the use of normal-sized repositories in good health.
    However, if you have large monorepos (larger than several gigabytes) this can **significantly** impact Git and Gitaly performance and an increase of specifications will likely be required.
    Refer to [large monorepos](index.md#large-monorepos) for more information.
@@ -52,7 +51,7 @@ skinparam linetype ortho
 
 card "**External Load Balancer**" as elb #6a9be7
 
-collections "**GitLab Rails** x3" as gitlab #32CD32
+collections "**GitLab Rails** x2" as gitlab #32CD32
 card "**Prometheus**" as monitor #7FFFD4
 card "**Gitaly**" as gitaly #FF8C00
 card "**PostgreSQL**" as postgres #4EA7FF