added badges tutorial first draft (#770)

Signed-off-by: Allison Suarez Miranda <asuarezmiranda@lyft.com>

docs/tutorials/badges.md

+# How to add table level and column level badges
+Amundsen supports use of clickable badges on tables, and non clickable badges for columns. Clickable badges trigger a search for all of the resources with the given badge name as a filter.
+
+![](../img/tutorials/table-badge.png)
+*Table badge*
+
+![](../img/tutorials/column-badge.png)
+*Column badge*
+## Badges configuration
+
+In order for amundsen to accept new badges via metadata and to change the style in the UI there are two configs that need to be setup:
+
+On [amundsen metadata library](https://github.com/amundsen-io/amundsenmetadatalibrary/blob/3c9a55e6af4cac9b342803c34cfe81851470e7f5/metadata_service/config.py) you should add your badges to the whitelist within your custom configuration file following the format of this example:
+
+```
+# whitelist badges
+WHITELIST_BADGES: List[Badge] = [
+    Badge(badge_name='alpha',
+          category='table_status'),
+    Badge(badge_name='beta',
+          category='table_status'),
+]
+```
+
+In order to set up the color and display name on [amundsen frontend library](https://github.com/amundsen-io/amundsenfrontendlibrary/blob/master/amundsen_application/static/js/config/config-custom.ts) you should add the desired badges style as follows:
+
+```
+const configCustom: AppConfigCustom = {
+    badges: {
+        'alpha': {
+            style: BadgeStyle.DEFAULT,
+            displayName: 'Alpha',
+        },
+        'partition column': {
+            style: BadgeStyle.DEFAULT,
+            displayName: 'Partition Column',
+        },
+    }
+}
+```
+
+**Note:** any badges that are not defined in this configuration will show up with `BadgeStyle.DEFAULT`.
+
+
+## Adding table badges through metadata library
+To manually add a badge to a particular table the metadata API can be used. Here are the available requests:
+
+To add a badge on a table:
+```
+curl -X PUT https://{your metadata url}/table/{table key}/badge/{badge name}?category={badge category}
+```
+
+To delete a badge on a table:
+```
+curl -X DELETE https://{your metadata url}/table/{table key}/badge/{badge name}?category={badge category}
+```
+
+## Adding badges throught databuilder (and column level badges)
+
+To add badges using databuilder, you can use the [BadgeMetadata](https://github.com/amundsen-io/amundsendatabuilder/blob/master/databuilder/models/badge.py) class and pass in the entity you want to create a badge relationship for. For an example of how this is done search for badge in [TableMetadata](https://github.com/amundsen-io/amundsendatabuilder/blob/master/databuilder/models/table_metadata.py) to see how we add badge nodes and relationships to neo4j.
+In [hive_table_metadata_extractor.py](https://github.com/amundsen-io/amundsendatabuilder/blob/8655338725bf279ea0332e5e6ab0592c8c7459ae/databuilder/extractor/hive_table_metadata_extractor.py#L106) you can see how the partition column is obtained and added to a column so the badge node can be created and related to the correct column.
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