update doc

readme.md

@@ -4,6 +4,24 @@
 
 [![Build Status](https://img.shields.io/drone/build/186526/net186-as-set?label=update&server=https%3A%2F%2Fci.186526.xyz)](https://ci.186526.xyz/186526/net186-as-set)
 
+## Details for AS-SET
+
+### `AS-NET186`
+
+`RIPE::AS-NET186` `AS200536:AS-DOWNSTREAMS` is the AS-SET containing all downstreams of the 186526 Network (AS200536).
+
+`ARIN::AS-NET186` `APNIC::AS-NET186` is now redirected to `AS200536:AS-DOWNSTREAMS`.
+
+### `AS200536:AS-DOWNSTEAMS`
+
+- `AS200536:AS-DOWNSTREAMS-EMEA`: 186526 Network downstream for EMEA region.
+- `AS200536:AS-DOWNSTREAMS-APAC`: 186526 Network downstream for APAC region.
+- `AS200536:AS-DOWNSTREAMS-AMER`: 186526 Network downstream for the Americas.
+
+### `AS200536:AS-DOWNSTREAMS-SELF`
+
+AS-SET containing all AS's used by the 186526 Network.
+
 ## Pull request
 
 Anyone using our (AS200536) Transit can create a pull request to add your AS-SET.