Docs: README (#105)

Made an addition to the documentation

README.md

@@ -5,6 +5,7 @@ The VictoriaLogs datasource plugin allows you to query and visualize
 [VictoriaLogs](https://docs.victoriametrics.com/victorialogs/) data in [Grafana](https://grafana.com).
 
 * [Installation](#installation)
+* [Getting started development](#getting-started-development)
 * [How to make new release](#how-to-make-new-release)
 * [Notes](#notes)
 * [License](#license)
@@ -145,7 +146,7 @@ sidecar:
 
 See more about chart settings [here](https://github.com/grafana/helm-charts/blob/541d97051de87a309362e02d08741ffc868cfcd6/charts/grafana/values.yaml)
 
-Option 4 would be to build custom Grafana image with plugin based on same installation instructions.
+Option 4. would be to build custom Grafana image with plugin based on same installation instructions.
 
 #### Grafana operator