Make tooltip less confusing

app/controllers/projects/application_controller.rb

@@ -21,7 +21,7 @@ class Projects::ApplicationController < ApplicationController
     unless @repository.branch_names.include?(@ref)
       redirect_to(
         namespace_project_tree_path(@project.namespace, @project, @ref),
-        notice: "This action is not allowed unless you are on top of a branch"
+        notice: "This action is not allowed unless you are on a branch"
       )
     end
   end

app/services/files/base_service.rb

@@ -53,7 +53,7 @@ module Files
 
       unless project.empty_repo?
         unless repository.branch_names.include?(@current_branch)
-          raise_error("You can only create or edit files when you are on top of a branch")
+          raise_error("You can only create or edit files when you are on a branch")
         end
 
         if @current_branch != @target_branch

app/views/projects/blob/_actions.html.haml

@@ -21,6 +21,6 @@
     %button.btn.btn-remove{ 'data-target' => '#modal-remove-blob', 'data-toggle' => 'modal' } Delete
 - elsif !on_top_of_branch?
   .btn-group{ role: "group" }
-    %button.btn.btn-default.disabled.has_tooltip{title: "You can only edit files when you are on top of a branch.", data: {container: 'body'}} Edit
-    %button.btn.btn-default.disabled.has_tooltip{title: "You can only replace files when you are on top of a branch.", data: {container: 'body'}} Replace
-    %button.btn.btn-remove.disabled.has_tooltip{title: "You can only delete files when you are on top of a branch.", data: {container: 'body'}} Delete
+    %button.btn.btn-default.disabled.has_tooltip{title: "You can only edit files when you are on a branch.", data: {container: 'body'}} Edit
+    %button.btn.btn-default.disabled.has_tooltip{title: "You can only replace files when you are on a branch.", data: {container: 'body'}} Replace
+    %button.btn.btn-remove.disabled.has_tooltip{title: "You can only delete files when you are on a branch.", data: {container: 'body'}} Delete

app/views/projects/tree/_tree_header.html.haml

@@ -32,5 +32,5 @@
               New directory
   - elsif !on_top_of_branch?
     %li
-      %span.btn.add-to-tree.disabled.has_tooltip{href: '#', title: "You can only add files when you are on top of a branch.", data: {container: 'body'}}
+      %span.btn.add-to-tree.disabled.has_tooltip{title: "You can only add files when you are on a branch.", data: {container: 'body'}}
         = icon('plus')