Add help text to indexing and metadata models

Signed-off-by: Roberto Rosario <roberto.rosario@mayan-edms.com>

mayan/apps/document_indexing/migrations/0016_auto_20191005_0647.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.22 on 2019-10-05 06:47
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('document_indexing', '0015_auto_20190429_1922'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='index',
+            name='label',
+            field=models.CharField(help_text='Short description of this index.', max_length=128, unique=True, verbose_name='Label'),
+        ),
+    ]

mayan/apps/document_indexing/models.py

@@ -33,6 +33,7 @@ class Index(models.Model):
     template and instance when resolved.
     """
     label = models.CharField(
+        help_text=_('Short description of this index.'),
         max_length=128, unique=True, verbose_name=_('Label')
     )
     slug = models.SlugField(
@@ -49,7 +50,8 @@ class Index(models.Model):
         verbose_name=_('Enabled')
     )
     document_types = models.ManyToManyField(
-        related_name='indexes', to=DocumentType, verbose_name=_('Document types')
+        related_name='indexes', to=DocumentType,
+        verbose_name=_('Document types')
     )
 
     objects = IndexManager()

mayan/apps/metadata/migrations/0013_auto_20191005_0646.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.22 on 2019-10-05 06:46
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('metadata', '0012_auto_20190612_0526'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='metadatatype',
+            name='label',
+            field=models.CharField(help_text='Short description of this metadata type.', max_length=48, verbose_name='Label'),
+        ),
+    ]

mayan/apps/metadata/models.py

@@ -52,7 +52,10 @@ class MetadataType(models.Model):
         ),
         unique=True, verbose_name=_('Name')
     )
-    label = models.CharField(max_length=48, verbose_name=_('Label'))
+    label = models.CharField(
+        help_text=_('Short description of this metadata type.'),
+        max_length=48, verbose_name=_('Label')
+    )
     default = models.CharField(
         blank=True, max_length=128, null=True,
         help_text=_(