Updated README with initial details.

README.md

@@ -1,2 +1,23 @@
 # go-learning
 Go language learning exercises.
+
+
+## Download and run ##
+
+Download repository contents from GitHub:
+
+```
+git clone https://github.com/gytisrepecka/go-learning.git
+```
+
+Run desired file, e.g.:
+
+```
+go run recursive-function.go
+```
+
+Have fun!
+
+## Credits ##
+
+These programs are written as Go programming language self-learning effort by Gytis Repečka. Read more at [my website](https://gyt.is/).