merge Martien's changes from the staging site (pull requests 156 and …

…157)

_posts/en/0500-10-25-tm-user_en.md

@@ -132,6 +132,8 @@ By default all the projects available for mapping are displayed. You can use the
 
 ![TM4 project graph]{:style="float:right;width:300px"} Once you have located a project of your interest, clicking on it will take you to the overview page for that project. Read the description carefully and scroll down for more information, such as the organization who coordinates the mapping for this project, who can map or validate, any comments about the project, a progress graph and the list of contributors.
 
+In the Questions and Comments section you can write and read about questions and comments concerning the project as a whole. The trashcan icon next to the comment box lets you delete a message you wrote.
+
 ![TM4-user-guide-6][]
 
 Icons indicate the types of mapping, such as:
@@ -142,6 +144,8 @@ Icons indicate the types of mapping, such as:
 - Land use: Understand the purpose of land is part of a comprehensive map.
 - Other: Any other kind of mapping.
 
+Near the bottom of this page you find a list of projects that are similar to the project you are viewing.
+
 ![TM4 contribute][]{:style="float:left;height:50px;padding-right:10px;"} The `Contribute` button on the bottom right takes you to the screen where you can read the mapping instructions and select the tasks to work on.    
 
 ## Project tasks page
@@ -278,7 +282,8 @@ If you didn't map at all, you can just go back without leaving any comment by ch
 Once you are done you can save all changes to OpenStreetMap:
 
 + Answer the question "Is this task completely mapped?" with `Yes`
-+ Add a comment to the text area detailing what you achieved and more importantly, what you are not certain of. For example; "Complete as far as I can see, but there is cloud covering the top right corner of the task & I cannot see to trace this area".  
++ Add a comment to the text area detailing what you achieved and more importantly, what you are not certain of. For example: "Complete as far as I can see, but there is cloud covering the top right corner of the task & I cannot see to trace this area".
++ In a comment it is possible to address specific mappers by starting with @, following by an OSM user name. Add #contributors, #author or #managers to address these.
 + Click on the `Submit task` button, and your work is ready for review.  
 
 > It is very difficult to be completely certain that you have completed a task - however it is acceptable to mark the task as complete if you are fairly sure - the contents will be checked by another mapper when validating, and any small additions can be made then.