Migrated from tips-and-tricks v2

Tips-and-tricks.textile

@@ -0,0 +1,17 @@
+* Use the implicit "result" variable and try to avoid "return".
+* Do not use templates/macros when an inline proc suffices.
+* Do not use "nil" for strings and sequences. The procs of the standard library which misuse "nil" as an error value will be deprecated.
+* Use "nimrod check myfile.nim" to check your program for errors, without code generation. This makes the process quicker.
+
+h1. Using reserved words as identifiers
+* You can use the slanted quote string syntax if you need to use a reserved word as an identifier: <code>var `type`: int</code>
+
+h1. Tricks with conditional compilation
+<pre>
+const someFeature = True
+
+when someFeature:
+  const someSubFeature = true
+else:
+  const someSubFeature = false
+</pre>