Move changelogs to subdirectory

CHANGELOG/CHANGELOG-3.1.md

@@ -1,6 +1,6 @@
 
 
-Previous change logs can be found at [CHANGELOG-3.0](https://github.com/etcd-io/etcd/blob/main/CHANGELOG-3.0.md).
+Previous change logs can be found at [CHANGELOG-3.0](https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.0.md).
 
 
 The minimum recommended etcd versions to run in **production** are 3.1.11+, 3.2.26+, and 3.3.11+.

CHANGELOG/CHANGELOG-3.2.md

@@ -1,6 +1,6 @@
 
 
-Previous change logs can be found at [CHANGELOG-3.1](https://github.com/etcd-io/etcd/blob/main/CHANGELOG-3.1.md).
+Previous change logs can be found at [CHANGELOG-3.1](https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.1.md).
 
 
 The minimum recommended etcd versions to run in **production** are 3.2.28+, 3.3.18+, and 3.4.2+.

CHANGELOG/CHANGELOG-3.3.md

@@ -1,6 +1,6 @@
 
 
-Previous change logs can be found at [CHANGELOG-3.2](https://github.com/etcd-io/etcd/blob/main/CHANGELOG-3.2.md).
+Previous change logs can be found at [CHANGELOG-3.2](https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.2.md).
 
 
 The minimum recommended etcd versions to run in **production** are 3.3.18+, 3.4.2+, and 3.5.1+. Refer to the [versioning policy](https://etcd.io/docs/v3.3/op-guide/versioning/) for more details.

CHANGELOG/CHANGELOG-3.4.md

@@ -1,6 +1,6 @@
 
 
-Previous change logs can be found at [CHANGELOG-3.3](https://github.com/etcd-io/etcd/blob/main/CHANGELOG-3.3.md).
+Previous change logs can be found at [CHANGELOG-3.3](https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.3.md).
 
 
 The minimum recommended etcd versions to run in **production** are 3.3.18+, 3.4.2+, and 3.5.1+. Refer to the [versioning policy](https://etcd.io/docs/v3.4/op-guide/versioning/) for more details.

CHANGELOG/CHANGELOG-3.5.md

@@ -1,6 +1,6 @@
 
 
-Previous change logs can be found at [CHANGELOG-3.4](https://github.com/etcd-io/etcd/blob/main/CHANGELOG-3.4.md).
+Previous change logs can be found at [CHANGELOG-3.4](https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.4.md).
 
 
 The minimum recommended etcd versions to run in **production** are 3.3.18+, 3.4.2+, and 3.5.1+. Refer to the [versioning policy](https://etcd.io/docs/v3.5/op-guide/versioning/) for more details.

CHANGELOG/CHANGELOG-3.6.md

@@ -1,6 +1,6 @@
 
 
-Previous change logs can be found at [CHANGELOG-3.5](https://github.com/etcd-io/etcd/blob/main/CHANGELOG-3.5.md).
+Previous change logs can be found at [CHANGELOG-3.5](https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.5.md).
 
 <hr>
 

CHANGELOG/CHANGELOG-4.0.md

@@ -1,6 +1,6 @@
 
 
-Previous change logs can be found at [CHANGELOG-3.x](https://github.com/etcd-io/etcd/blob/main/CHANGELOG-3.x.md).
+Previous change logs can be found at [CHANGELOG-3.x](https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.x.md).
 
 
 The minimum recommended etcd versions to run in **production** are 3.2.28+, 3.3.18+, and 3.4.2+.