Add missing newline at end of lesson files. (yurishkuro#20)

Author: eest

go/lesson01/README.md

@@ -196,4 +196,4 @@ helper function into its own package so that we can reuse it in the other lesson
 Next lesson: [Context and Tracing Functions](../lesson02).
 
 [semantic-conventions]: https://github.com/opentracing/specification/blob/master/semantic_conventions.md
-[google-logging]: https://www.google.com/search?q=structured-logging
+[google-logging]: https://www.google.com/search?q=structured-logging

go/lesson03/README.md

@@ -200,4 +200,4 @@ The complete program can be found in the [solution](./solution) package.
 
 Next lesson: [Baggage](../lesson04).
 
-[semantic-conventions]: https://github.com/opentracing/specification/blob/master/semantic_conventions.md
+[semantic-conventions]: https://github.com/opentracing/specification/blob/master/semantic_conventions.md

nodejs/lesson04/solution/hello-context.js

@@ -94,4 +94,4 @@ const tracer = initTracer('hello-world');
 
 sayHello(helloTo, greeting);
 
-setTimeout( e => {tracer.close();}, 12000);
+setTimeout( e => {tracer.close();}, 12000);

nodejs/lesson04/solution/hello.js

@@ -82,4 +82,4 @@ const tracer = initTracer('hello-world');
 
 sayHello(helloTo, greeting);
 
-setTimeout( e => {tracer.close();}, 12000);
+setTimeout( e => {tracer.close();}, 12000);

python/lesson01/README.md

@@ -216,4 +216,4 @@ helper function into its own package so that we can reuse it in the other lesson
 Next lesson: [Context and Tracing Functions](../lesson02).
 
 [semantic-conventions]: https://github.com/opentracing/specification/blob/master/semantic_conventions.md
-[google-logging]: https://www.google.com/search?q=structured-logging
+[google-logging]: https://www.google.com/search?q=structured-logging