source_ami_filter: fix doc indentation

website/source/docs/builders/amazon-chroot.html.md.erb

@@ -290,21 +290,21 @@ each category, the available configuration keys are alphabetized.
 -   `source_ami_filter` (object) - Filters used to populate the `source_ami`
     field. Example:
 
-    ``` json
-    "source_ami_filter": {
-      "filters": {
-        "virtualization-type": "hvm",
-        "name": "ubuntu/images/*ubuntu-xenial-16.04-amd64-server-*",
-        "root-device-type": "ebs"
-      },
-      "owners": ["099720109477"],
-      "most_recent": true
-    }
-    ```
-
-    This selects the most recent Ubuntu 16.04 HVM EBS AMI from Canonical. NOTE:
-    This will fail unless *exactly* one AMI is returned. In the above example,
-    `most_recent` will cause this to succeed by selecting the newest image.
+      ``` json
+      "source_ami_filter": {
+        "filters": {
+          "virtualization-type": "hvm",
+          "name": "ubuntu/images/*ubuntu-xenial-16.04-amd64-server-*",
+          "root-device-type": "ebs"
+        },
+        "owners": ["099720109477"],
+        "most_recent": true
+      }
+      ```
+
+      This selects the most recent Ubuntu 16.04 HVM EBS AMI from Canonical. NOTE:
+      This will fail unless *exactly* one AMI is returned. In the above example,
+      `most_recent` will cause this to succeed by selecting the newest image.
 
     -   `filters` (map of strings) - filters used to select a `source_ami`.
         NOTE: This will fail unless *exactly* one AMI is returned. Any filter

website/source/docs/builders/amazon-ebs.html.md.erb

@@ -313,19 +313,19 @@ builder.
 -   `source_ami_filter` (object) - Filters used to populate the `source_ami`
     field. Example:
 
-    ``` json
-    {
-      "source_ami_filter": {
-        "filters": {
-          "virtualization-type": "hvm",
-          "name": "ubuntu/images/*ubuntu-xenial-16.04-amd64-server-*",
-          "root-device-type": "ebs"
-        },
-        "owners": ["099720109477"],
-        "most_recent": true
+      ``` json
+      {
+        "source_ami_filter": {
+          "filters": {
+            "virtualization-type": "hvm",
+            "name": "ubuntu/images/*ubuntu-xenial-16.04-amd64-server-*",
+            "root-device-type": "ebs"
+          },
+          "owners": ["099720109477"],
+          "most_recent": true
+        }
       }
-    }
-    ```
+      ```
 
     This selects the most recent Ubuntu 16.04 HVM EBS AMI from Canonical. NOTE:
     This will fail unless *exactly* one AMI is returned. In the above example,

website/source/docs/builders/amazon-ebssurrogate.html.md.erb

@@ -314,23 +314,23 @@ builder.
 -   `source_ami_filter` (object) - Filters used to populate the `source_ami`
     field. Example:
 
-    ``` json
-    {
-      "source_ami_filter": {
-        "filters": {
-          "virtualization-type": "hvm",
-          "name": "ubuntu/images/*ubuntu-xenial-16.04-amd64-server-*",
-          "root-device-type": "ebs"
-        },
-        "owners": ["099720109477"],
-        "most_recent": true
+      ``` json
+      {
+        "source_ami_filter": {
+          "filters": {
+            "virtualization-type": "hvm",
+            "name": "ubuntu/images/*ubuntu-xenial-16.04-amd64-server-*",
+            "root-device-type": "ebs"
+          },
+          "owners": ["099720109477"],
+          "most_recent": true
+        }
       }
-    }
-    ```
+      ```
 
-    This selects the most recent Ubuntu 16.04 HVM EBS AMI from Canonical. NOTE:
-    This will fail unless *exactly* one AMI is returned. In the above example,
-    `most_recent` will cause this to succeed by selecting the newest image.
+      This selects the most recent Ubuntu 16.04 HVM EBS AMI from Canonical. NOTE:
+      This will fail unless *exactly* one AMI is returned. In the above example,
+      `most_recent` will cause this to succeed by selecting the newest image.
 
     -   `filters` (map of strings) - filters used to select a `source_ami`.
         NOTE: This will fail unless *exactly* one AMI is returned. Any filter

website/source/docs/builders/amazon-instance.html.md.erb

@@ -301,23 +301,23 @@ builder.
 -   `source_ami_filter` (object) - Filters used to populate the `source_ami`
     field. Example:
 
-    ``` json
-    {
-      "source_ami_filter": {
-        "filters": {
-          "virtualization-type": "hvm",
-          "name": "ubuntu/images/*ubuntu-xenial-16.04-amd64-server-*",
-          "root-device-type": "ebs"
-        },
-        "owners": ["099720109477"],
-        "most_recent": true
+      ``` json
+      {
+        "source_ami_filter": {
+          "filters": {
+            "virtualization-type": "hvm",
+            "name": "ubuntu/images/*ubuntu-xenial-16.04-amd64-server-*",
+            "root-device-type": "ebs"
+          },
+          "owners": ["099720109477"],
+          "most_recent": true
+        }
       }
-    }
-    ```
+      ```
 
-    This selects the most recent Ubuntu 16.04 HVM EBS AMI from Canonical. NOTE:
-    This will fail unless *exactly* one AMI is returned. In the above example,
-    `most_recent` will cause this to succeed by selecting the newest image.
+      This selects the most recent Ubuntu 16.04 HVM EBS AMI from Canonical. NOTE:
+      This will fail unless *exactly* one AMI is returned. In the above example,
+      `most_recent` will cause this to succeed by selecting the newest image.
 
     -   `filters` (map of strings) - filters used to select a `source_ami`.
         NOTE: This will fail unless *exactly* one AMI is returned. Any filter