Add help message

README.md

@@ -25,7 +25,7 @@ A browser extension that enhance all Merge Requests lists on any instance of Git
   - WIP toggle button (can be enabled/disabled in the extension preferences)
   - Show an indicator when there's unresolved discussions left on Merge Requests
     - Can be enabled/disabled in the extension preferences
-    - Note the **All discussions must be resolved** option must be enabled for this feature to be working as expected. This option must be enabled per project and is located in **Settings > General > Merge Requests > Merge checks**
+    - Note the **All discussions must be resolved** option must be enabled for this feature to be working as expected. This option is enabled per project and is located in **Settings > General > Merge Requests > Merge checks**
   - Compatible with all GitLab editions (GitLab CE, GitLab EE, GitLab.com) (look at the prerequisites, though)
 
 ## Prerequisites

html/options.html

@@ -70,6 +70,9 @@
                 <label for="enable_unresolved_discussions_indicator">Show an indicator when there's unresolved discussion(s) left</label>
             </div>
         </div>
+        <div class="pbs pll">
+            <small class="txt-muted">Note the <strong>All discussions must be resolved</strong> option must be enabled for this feature to be working as expected. This option is enabled per project and is located in <strong>Settings > General > Merge Requests > Merge checks</strong>.</small>
+        </div>
         <div class="txt-center pts pbs"><button type="submit" class="browser-style">Save preferences</button></div>
     </form>