UPDATES: updating minor fixes in development_guide.md

doc/development_guide/development_guide.md

@@ -215,6 +215,7 @@ If you used the sample project above, you should have a project with a basic str
 First make sure that you copy the protobuff files, that are found in the root directory of the TFS SDN controller, to the `new-component/src/main/proto` directory.
 
 Next you should create the following files:
+
 * `new-component/.gitlab-ci.yml`
 * `new-component/Dockerfile`
 * `new-component/src/resources/application.yaml`
@@ -300,7 +301,6 @@ export PATH=$HOME/.cache/rebar3/bin:$PATH
 
 ### **2.1.6. Kotlin**
 
-<h2><u>Kotlin</h2></u>
 This section describes the steps needed to establish a development environment for TFS (TeraFlowSDN) components implemented in Kotlin. Currently, the `Gateway` component stands as the sole component developed in Kotlin.
 
 <h3><u>Install Kotlin</h3></u>