Merge pull request #1075 from flaviut/inlinedocs

Add some documentations and code examples in system

tests/misc/tbug511622.nim

@@ -0,0 +1,16 @@
+discard """
+  file: "tbug511622.nim"
+  output: "3"
+"""
+import StrUtils, Math
+
+proc FibonacciA(n: int): int64 =
+  var fn = float64(n)
+  var p: float64 = (1.0 + sqrt(5.0)) / 2.0
+  var q: float64 = 1.0 / p
+  return int64((pow(p, fn) + pow(q, fn)) / sqrt(5.0))
+
+echo FibonacciA(4) #OUT 3
+
+
+