Add note about adding multiple files to a version (#546)

* Add note about adding multiple files to a version

Closes #545 as not planned

Related to modrinth/docs#50

* Fix note showing on version.vue when it shouldn't

pages/_type/_id/version.vue

@@ -551,6 +551,10 @@
           :max-size="524288000"
           @change="(x) => x.forEach((y) => newFiles.push(y))"
         />
+        <span v-if="mode === 'edit' || mode === 'create'">
+          You may upload multiple files, but this should only be used for cases
+          like sources or Javadocs.
+        </span>
       </section>
     </div>
     <NuxtChild v-show="false" :mode.sync="mode" />

pages/create/project.vue

@@ -545,6 +545,10 @@
           </div>
           <div class="files">
             <h3>Files<span class="required">*</span></h3>
+            <span>
+              You may upload multiple files, but this should only be used for
+              cases like sources or Javadocs.
+            </span>
             <StatelessFileInput
               :class="{
                 'known-error':