diff --git a/docs/specs/metadata_example.xml b/docs/specs/metadata_example.xml
--- a/docs/specs/metadata_example.xml
+++ b/docs/specs/metadata_example.xml
@@ -1,30 +1,30 @@
 <?xml version="1.0"?>
-    <entry xmlns="http://www.w3.org/2005/Atom"
-             xmlns:codemeta="https://doi.org/10.5063/SCHEMA/CODEMETA-2.0"
-             xmlns:swh="https://www.softwareheritage.org/schema/2018/deposit">
-        <author>
-          <name>HAL</name>
-          <email>hal@ccsd.cnrs.fr</email>
-        </author>
-        <client>hal</client>
-        <codemeta:name>The assignment problem</codemeta:name>
-        <codemeta:url>https://hal.archives-ouvertes.fr/hal-01243573</codemeta:url>
-        <codemeta:identifier>other identifier, DOI, ARK</codemeta:identifier>
-        <codemeta:applicationCategory>Domain</codemeta:applicationCategory>
-        <codemeta:description>description</codemeta:description>
-        <codemeta:author>
-            <codemeta:name> author1 </codemeta:name>
-            <codemeta:affiliation> Inria </codemeta:affiliation>
-            <codemeta:affiliation> UPMC </codemeta:affiliation>
-        </codemeta:author>
-        <codemeta:author>
-            <codemeta:name> author2 </codemeta:name>
-            <codemeta:affiliation> Inria </codemeta:affiliation>
-            <codemeta:affiliation> UPMC </codemeta:affiliation>
-        </codemeta:author>
-        <swh:deposit>
-          <swh:create_origin>
-            <swh:origin url="http://has.archives-ouvertes.fr/hal-01243573" />
-          </swh:create_origin>
-        </swh:deposit>
-    </entry>
+<entry xmlns="http://www.w3.org/2005/Atom"
+       xmlns:codemeta="https://doi.org/10.5063/SCHEMA/CODEMETA-2.0"
+       xmlns:swh="https://www.softwareheritage.org/schema/2018/deposit">
+  <author>
+    <name>HAL</name>
+    <email>hal@ccsd.cnrs.fr</email>
+  </author>
+  <client>hal</client>
+  <codemeta:name>The assignment problem</codemeta:name>
+  <codemeta:url>https://hal.archives-ouvertes.fr/hal-01243573</codemeta:url>
+  <codemeta:identifier>other identifier, DOI, ARK</codemeta:identifier>
+  <codemeta:applicationCategory>Domain</codemeta:applicationCategory>
+  <codemeta:description>description</codemeta:description>
+  <codemeta:author>
+      <codemeta:name> author1 </codemeta:name>
+      <codemeta:affiliation> Inria </codemeta:affiliation>
+      <codemeta:affiliation> UPMC </codemeta:affiliation>
+  </codemeta:author>
+  <codemeta:author>
+      <codemeta:name> author2 </codemeta:name>
+      <codemeta:affiliation> Inria </codemeta:affiliation>
+      <codemeta:affiliation> UPMC </codemeta:affiliation>
+  </codemeta:author>
+  <swh:deposit>
+    <swh:create_origin>
+      <swh:origin url="http://has.archives-ouvertes.fr/hal-01243573" />
+    </swh:create_origin>
+  </swh:deposit>
+</entry>
diff --git a/docs/specs/spec-meta-deposit.rst b/docs/specs/spec-meta-deposit.rst
--- a/docs/specs/spec-meta-deposit.rst
+++ b/docs/specs/spec-meta-deposit.rst
@@ -43,32 +43,32 @@
 
   <?xml version="1.0"?>
   <entry xmlns="http://www.w3.org/2005/Atom"
-           xmlns:codemeta="https://doi.org/10.5063/SCHEMA/CODEMETA-2.0"
-           xmlns:swh="https://www.softwareheritage.org/schema/2018/deposit">
-      <author>
-        <name>HAL</name>
-        <email>hal@ccsd.cnrs.fr</email>
-      </author>
-      <codemeta:name>The assignment problem</codemeta:name>
-      <codemeta:url>https://hal.archives-ouvertes.fr/hal-01243573</codemeta:url>
-      <codemeta:identifier>other identifier, DOI, ARK</codemeta:identifier>
-      <codemeta:applicationCategory>Domain</codemeta:applicationCategory>
-      <codemeta:description>description</codemeta:description>
-      <codemeta:author>
-        <codemeta:name> author1 </codemeta:name>
-        <codemeta:affiliation> Inria </codemeta:affiliation>
-        <codemeta:affiliation> UPMC </codemeta:affiliation>
-      </codemeta:author>
-      <codemeta:author>
-        <codemeta:name> author2 </codemeta:name>
-        <codemeta:affiliation> Inria </codemeta:affiliation>
-        <codemeta:affiliation> UPMC </codemeta:affiliation>
-      </codemeta:author>
-      <swh:deposit>
-        <swh:reference>
-          <swh:origin url='https://github.com/user/repo'/>
-        </swh:reference>
-      </swh:deposit>
+         xmlns:codemeta="https://doi.org/10.5063/SCHEMA/CODEMETA-2.0"
+         xmlns:swh="https://www.softwareheritage.org/schema/2018/deposit">
+    <author>
+      <name>HAL</name>
+      <email>hal@ccsd.cnrs.fr</email>
+    </author>
+    <codemeta:name>The assignment problem</codemeta:name>
+    <codemeta:url>https://hal.archives-ouvertes.fr/hal-01243573</codemeta:url>
+    <codemeta:identifier>other identifier, DOI, ARK</codemeta:identifier>
+    <codemeta:applicationCategory>Domain</codemeta:applicationCategory>
+    <codemeta:description>description</codemeta:description>
+    <codemeta:author>
+      <codemeta:name>Author1</codemeta:name>
+      <codemeta:affiliation>Inria</codemeta:affiliation>
+      <codemeta:affiliation>UPMC</codemeta:affiliation>
+    </codemeta:author>
+    <codemeta:author>
+      <codemeta:name>Author2</codemeta:name>
+      <codemeta:affiliation>Inria</codemeta:affiliation>
+      <codemeta:affiliation>UPMC</codemeta:affiliation>
+    </codemeta:author>
+    <swh:deposit>
+      <swh:reference>
+        <swh:origin url='https://github.com/user/repo'/>
+      </swh:reference>
+    </swh:deposit>
   </entry>
 
 References