Appending Indicator to the list of projects using Revive. (#1065)

Author: cinar

README.md

@@ -56,6 +56,7 @@ Here's how `revive` is different from `golint`:
 - [`DevLake`](https://github.com/apache/incubator-devlake) - Apache DevLake is an open-source dev data platform to ingest, analyze, and visualize the fragmented data from DevOps tools，which can distill insights to improve engineering productivity.
 - [`checker`](https://github.com/cinar/checker) - Checker helps validating user input through rules defined in struct tags or directly through functions.
 - [`milvus`](https://github.com/milvus-io/milvus) - A cloud-native vector database, storage for next generation AI applications.
+- [`indicator`](https://github.com/cinar/indicator) - Indicator provides various technical analysis indicators, strategies, and a backtesting framework.
 
 *Open a PR to add your project*.