Some typos

docs/getting_started/online_sandbox/sandbox_workbook_blank.ipynb

@@ -1101,7 +1101,7 @@
    "id": "08b8557c-66fe-4a25-a8bf-5413ca1c1fbb",
    "metadata": {},
    "source": [
-    "What if you only want the valuation at age 60?"
+    "What if you only want the valuation at age 60 of AY 1998?"
    ]
   },
   {
@@ -1129,7 +1129,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "xyz_tri.iloc[__fill_in_code__, __fill_in_code__, __fill_in_code__, __fill_in_code__]"
+    "xyz_tri.loc[__fill_in_code__, __fill_in_code__, __fill_in_code__, __fill_in_code__]"
    ]
   },
   {
@@ -1263,7 +1263,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "cl.Development(average=\"simple\").fit(__fill_in_code__).ldf_"
+    "cl.Development(average=\"volume\").fit(__fill_in_code__).ldf_"
    ]
   },
   {
@@ -1281,7 +1281,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "cl.Development(average=\"simple\").fit(__fill_in_code__).__fill_in_code__"
+    "cl.Development(average=\"volume\").fit(__fill_in_code__).__fill_in_code__"
    ]
   },
   {
@@ -1299,7 +1299,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "cl.Development(average=\"simple\", n_periods=__fill_in_code__).fit(xyz_tri[\"Incurred\"]).cdf_"
+    "cl.Development(average=\"volume\", n_periods=__fill_in_code__).fit(xyz_tri[\"Incurred\"]).cdf_"
    ]
   },
   {
@@ -1524,7 +1524,7 @@
    "id": "36105614-e317-4a87-a42d-282f59b1d339",
    "metadata": {},
    "source": [
-    "The Mack's Chainladder model is available."
+    "The Mack's Chainladder model is available. Let's use it on the Incurred triangle."
    ]
   },
   {
@@ -1683,7 +1683,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.12"
+   "version": "3.9.17"
   }
  },
  "nbformat": 4,