Fix typos and other to make it build

medup-requirements/draft-symeonidis-medup-requirements.mkd

@@ -105,7 +105,7 @@ An online transport is transporting messages synchronously to receivers
 if those are online. If receivers are offline, no message can be
 transported. The connection status of an receiver is available to the
 sender. Examples are Jabber and IRC.
-
+-->
 
 pEp is supposed to solve three problems <!-- for both types of transports -->:
 
@@ -223,6 +223,7 @@ In contrast to security, non-repudiation can be a threat to a user's privacy for
 
 
 <!-- =================================================================== -->
+
 # Specific security and privacy requirements
 
 ## Messages Exchange
@@ -287,7 +288,7 @@ In contrast to security, non-repudiation can be a threat to a user's privacy for
   {{synchronization-management}}
 
 
-## Synchronization Mangagement
+## Synchronization Management
 
 A device group is a group of devices of the same user that share the
 same key pairs in order to synchronize data among them.  In a device
@@ -295,8 +296,10 @@ group devices of the same user mutually grant authentication.
 
 * Form a device group of two (yet ungrouped) devices of the same user
 
+<!--
   Note: Preconditions for forming a device group are outlined in
   {{preconditions-for-forming-a-device-group}}.
+-->
 
 * Join another device of the same user to existing device group