docs: Add redis docs

Closes: https://github.com/appbaseio/abc/issues/116

docs/appbase/import.md

@@ -104,6 +104,13 @@ For more source URL patterns, see [go-sql-driver/mysql](https://github.com/go-sq
 abc import --src_type=postgres -t --replication_slot="standby_replication_slot" --src_uri="postgresql://USER:PASS@HOST:PORT/DBNAME" "https://USER:PASS@scalr.api.appbase.io/APPNAME"
 ```
 
+
+### Redis
+
+```sh
+abc import --src_type=redis --src_uri="redis://USER:PASS@HOST:PORT/DBNUMBER" "https://USER:PASS@scalr.api.appbase.io/APPNAME"
+```
+
 ### Using a config file
 
 ```sh

docs/importer/adaptors/redis.md

+# Redis adaptor
+
+- The [redis](http://redis.io/) adaptor is capable of reading different data structures stored in a Redis database and transfer them to Elasticsearch.
+
+**Note:** Two redis data structures (bitmaps and hyperloglogs) are not supported by the redis adaptor yet. They are indexed as string types however but the appbaseio browser will show non-human readable values for these data structures and hence it is recommended not to index these data structures from your redis DB.
+
+## Usage
+`abc import --src_type=redis --src_uri="<redis db url>" "<destination url>"`
+
+
+## Example
+`abc import --src_type=redis --src_uri="redis://localhost:6379/0" appbase-redis-demo`
\ No newline at end of file