Adding help icon in jira importer

app/locales/taiga/locale-en.json

@@ -996,6 +996,7 @@
             },
             "JIRA": {
                 "SELECTOR": "Import your Jira project and choose how to manage it",
+                "HOW_TO_CONFIGURE_IT": "(How to configure it)",
                 "CHOOSE_PROJECT": "Choose project or board that you want to import",
                 "NO_PROJECTS": "It seems you have no porjects or boards in Jira",
                 "URL": "Your Jira URL",

app/modules/projects/create/import/import-project.jade

@@ -18,6 +18,9 @@
             .import-project-name-wrapper
                 span.import-project-name Jira
                 p.import-project-description(translate="PROJECT.IMPORT.JIRA.SELECTOR")
+                a(target="_blank",
+                  href="https://tree.taiga.io/support/importers/jira-importer/"
+                  translate="PROJECT.IMPORT.JIRA.HOW_TO_CONFIGURE_IT")
                 fieldset.import-project-url(ng-if="vm.unfoldedOptions == 'jira'")
                     label(
                         for="jira-host"