Merge pull request freechipsproject#137 from sterin/minor-fixes

Minor description problem: fix incorrect arguments for ChiselTest's peek()

Author: chick

2.6_chiseltest.ipynb

@@ -76,7 +76,7 @@
     "|        | iotesters             | ChiselTest            |\n",
     "| :----  | :---                  | :---                |\n",
     "| poke   | poke(c.io.in1, 6)     | c.io.in1.poke(6.U)    |\n",
-    "| peek   | peek(c.io.out1)       | c.io.out1.peek(6.U)   |\n",
+    "| peek   | peek(c.io.out1)       | c.io.out1.peek()      |\n",
     "| expect | expect(c.io.out1, 6)  | c.io.out1.expect(6.U) |\n",
     "| step   | step(1)               | c.io.clock.step(1)  |\n",
     "| initiate | Driver.execute(...) { c => | test(...) { c => |\n"