doc improvements

examples/Introduction.ipynb

@@ -1944,7 +1944,7 @@
     "from kyupy import sdf\n",
     "\n",
     "df = sdf.load('../tests/b15_2ig.sdf.gz')\n",
-    "delays = df.annotation(b15, dataset=0, interconnect=False)"
+    "delays = df.iopaths(b15)[0]"
    ]
   },
   {
@@ -1989,7 +1989,7 @@
     {
      "data": {
       "text/plain": [
-       "78296"
+       "79010"
       ]
      },
      "execution_count": 64,
@@ -2209,7 +2209,7 @@
     {
      "data": {
       "text/plain": [
-       "1.1518999338150024"
+       "1.0424000024795532"
       ]
      },
      "execution_count": 71,