Merge pull request #300 from sogaiu/add-try-examples

Add try examples

Author: sogaiu

examples/try.janet

@@ -0,0 +1,23 @@
+# when no error, return result of `body`
+(try
+  (do
+    :not-much
+    true)
+  ([_]
+    :not-reached))
+# -> true
+
+# when an error, return result of `catch`
+(try
+  (error :a-value)
+  ([e]
+    (type e)))
+# -> :keyword
+
+# fiber wrapping `body` can be available on error
+(try
+  (error "fun")
+  ([_ fib]
+    (type fib)))
+# -> :fiber
+