Minor grammatical error fixed

resumegenerator.html

@@ -278,7 +278,7 @@ <h3>Achievements</h3>
                                 <button onclick="addNewAchievement()" class="btn btn-dark btn-lg" id="achievementAddButton">Add This</button>
                                 <button class="btn btn-dark btn-lg hidden" id="achievementUpdateButton">Update</button>
                                 <div>You must click the button to add this to LaTeX code.</div><br>
-                                <div class="form-group hidden" id="achievementEditComment">If you want to edit an achievements, click on edit.<br> If you want to delete an achievements, click on delete.</div>
+                                <div class="form-group hidden" id="achievementEditComment">If you want to edit an achievement, click on edit.<br> If you want to delete an achievement, click on delete.</div>
                                 <div id="achievementsEdit">
 
                                 </div>