Fix typos, add some text

Hi Rob, great work!  I noticed a couple typos so jumped in.  Also on looking at a report I noticed a couple things and added some clarification.  Please check to make sure I haven't said something that's incorrect.

en/src/user_manual/groups/participation_report/index.md

@@ -6,7 +6,7 @@ The group participation report gives insights into the usage of your Loomio grou
 
 You're able to choose which groups to include in the report, the start and end date for the report, and the interval (year, month, week or day) for grouping results. 
 
-The report is available to everyone in your group, however users can only see results for groups that they belong to, this means that different users may see slighlty different reports.
+The report is available to everyone in your group, however users can only see results for groups that they belong to, this means that different users may see slightly different reports.
 
 You can find the report by clicking the group settings menu cog, as shown below. 
 
@@ -20,14 +20,14 @@ Understand how much participation happens in your group over a given period of t
 
 The report shows how many threads, comments, polls, votes and reactions have happened per month. This is graphed so you can see ebbs and flows of usage.
 
-Click specific labels on the graph to remove them from.
+Click specific labels on the graph to remove them from view.
 
 Click specific headings in the table to sort the table by that column.
 
 
 ### Tag usage
 
-This shows how frequently various tags have been applied during the specified time frame.
+This shows how frequently various tags have been applied during the specified time frame.  For example, you can see the number of decisions using a particular decision process or template.
 
 ### Actions per user
 Understand who are the most and least active contributors in your group.
@@ -36,10 +36,10 @@ This table shows how many threads, comments, polls, votes and reactions each use
 
 ### Users per country
 
-How many users are in each country. For all users in your group. This is based on the IP address of users.
+How many users are in each country for all users in your group, based on the current IP address of users.
 
 ### Actions per country
 
-Understand which country's users participate the most and least.
+Understand in which country users participate the most and least.
 
 Similar to "Actions per user", but the data is grouped by the country the user is detected as being in.