service/ci.md

@@ -417,10 +417,9 @@ Whether a runner will pick a job depends on a few things:
 
 We currently use the following tags:
 
- * **architecture**: `amd64`, for example, runs on the normal 64-bit
-   Intel/AMD architecture, and `aarch64` is the [64-bit ARM
-   extension](https://en.wikipedia.org/wiki/AArch64), new tags may be introduced as other architectures
-   are supported
+ * **architecture**:
+   * `amd64`: popular [64-bit Intel/AMD architecture](https://en.wikipedia.org/wiki/X86-64)
+   * `aarch64`: the [64-bit ARM extension](https://en.wikipedia.org/wiki/AArch64)
  * **OS**: `linux` is usually implicit but other tags might eventually
    be added for other OS
  * **executor** type: `docker`, `KVM`, etc. `docker` are the typical