updates README.adoc (#1)

- removed a redundant dot '.' from the URL in git command
- https for URLs

Author: antonarhipov

README.adoc

@@ -34,15 +34,15 @@ Clone the repository from IntelliJ IDEA by choosing `File | New | Project from V
 
 image::{images}/download-from-vcs.png[]
 
-Specify the project path: http://github.com/kotlin-hands-on/kotlin-spring-chat.
+Specify the project path: https://github.com/kotlin-hands-on/kotlin-spring-chat.
 
 image::{images}/download-from-vcs-github.png[]
 
 Once you clone the project, IntelliJ IDEA will import and open it automatically.
 Alternatively, you can clone the project with the command line:
 
 [source,bash]
-$ git clone https://github.com/kotlin-hands-on/kotlin-spring-chat.
+$ git clone https://github.com/kotlin-hands-on/kotlin-spring-chat
 
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