made the readme and example for the CSV import accessible from the form directly

shimatta_kenkyusho/templates/parts/modals/import-component-modal.html

@@ -6,6 +6,22 @@
         <div class="modal-content">
             <div class="modal-header">
                 <h2>Import Component CSV</h2>
+                <button type="button"
+                        class="btn"
+                        data-bs-toggle="popover"
+                        data-bs-title="Import Component CSV"
+                        data-bs-html="true"
+                        data-bs-content="The shimatta kenkyusho can import components from a CSV file uploaded to the website.<br>
+                                         All parameters are passed as names (e.g. package, manufacturer etc.).<br><br>
+                                         Component parameters can be set using a prefix <code>param:</code> followed by the
+                                         parameter name. The value is then parsed bysed on the parameter type.<br><br>
+                                         Distributor part numbers can be set similarly by prepending <code>distri:</code>.<br><br>
+                                         It is also possible to create initial stocks to one storage by passing the
+                                         storage uuid and/or the path to the storage (as printed in the breadcrumbs) or
+                                         a combination of a storage uuid and the path from this storage.<br><br>
+                                         See <a href='{% static 'example/import_csv/import_csv.csv' %}'>example</a> for details.">
+                    <i class="bi bi-info-circle"></i>
+                </button>
                 <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
             </div>
             <form method="post" enctype="multipart/form-data">