diff --git a/cmd/config/docs/api-conventions/config-io.md b/cmd/config/docs/api-conventions/config-io.md
index 37a99a4e0..5237ef837 100644
--- a/cmd/config/docs/api-conventions/config-io.md
+++ b/cmd/config/docs/api-conventions/config-io.md
@@ -1,49 +1,58 @@
 # Configuration IO API Semantics
 
-  Resource Configuration may be read / written from / to sources such as directories,
-  stdin|out or network.  Tools may be composed using pipes such that the tools writing
-  Resource Configuration may be a different tool from the one that read the configuration.
-  In order for tools to be composed in this way, while preserving origin information --
-  such as the original file, index, etc.
+Resource Configuration may be read / written from / to sources such as directories,
+stdin|out or network. Tools may be composed using pipes such that the tools writing
+Resource Configuration may be a different tool from the one that read the configuration.
+In order for tools to be composed in this way, while preserving origin information --
+such as the original file, index, etc.
 
-  Tools **SHOULD** write the following annotations when reading from sources,
-  and **SHOULD** respect the annotations when writing to syncs.
+Tools **SHOULD** write the following annotations when reading from sources,
+and **SHOULD** respect the annotations when writing to sinks.
 
 ### `config.kubernetes.io/path`
 
-  `config.kubernetes.io/path` records a relative path on a Resource.  This annotation
-  **SHOULD** be set when reading Resources from files.
-  When writing Resources to a directory, the Resource **SHOULD** be written to the corresponding
-  path relative to that directory.
+Records the slash-delimited, OS-agnostic, relative file path to a Resource.
 
-  Example:
+This annotation **SHOULD** be set when reading Resources from files.
+When writing Resources to a directory, the Resource **SHOULD** be written to the corresponding
+path relative to that directory.
 
-    metadata:
-      annotations:
-        config.kubernetes.io/path: "relative/file/path.yaml"
+Example:
+
+```yaml
+metadata:
+  annotations:
+    config.kubernetes.io/path: "relative/file/path.yaml"
+```
 
 ### `config.kubernetes.io/index`
 
-  `config.kubernetes.io/index` records the index of a Resource into a file which may contain
-  multiple Resource.  This annotation  **SHOULD** be set when reading Resources from files.
-  When writing multiple Resources to the same file, the Resource **SHOULD** be written in the
-  relative order matching the index.
+Records the index of a Resource in file. In a multi-object files YAML file, Resources are separated
+by three dashes (`---`), and the index represents the positon of the Resource starting from zero.
 
-  Example:
+This annotation **SHOULD** be set when reading Resources from files.
+When writing multiple Resources to the same file, the Resource **SHOULD** be written in the
+relative order matching the index.
 
-    metadata:
-      annotations:
-        config.kubernetes.io/index: "0"
+Example:
+
+```yaml
+metadata:
+  annotations:
+    config.kubernetes.io/index: "0"
+```
 
 ### `config.kubernetes.io/local-config`
 
-  `config.kubernetes.io/local-config` declares that the configuration is to local tools
-  rather than a remote Resource.  e.g. The `Kustomization` config in a `kustomization.yaml`
-  **SHOULD** contain this annotation so that tools know it is not intended to be sent to
-  the Kubernetes api server.
-  
-  Example:
-  
-    metadata:
-      annotations:
-        config.kubernetes.io/local-config: "true"
+`config.kubernetes.io/local-config` declares that the configuration is to local tools
+rather than a remote Resource. e.g. The `Kustomization` config in a `kustomization.yaml`
+**SHOULD** contain this annotation so that tools know it is not intended to be sent to
+the Kubernetes api server.
+
+Example:
+
+```yaml
+metadata:
+  annotations:
+    config.kubernetes.io/local-config: "true"
+```