Typo fixed in get_data and get_history examples

Author: Olivier Davant

Examples/1-Access/EX-1.01.01-GetData.ipynb

@@ -31,13 +31,13 @@
     "***get_data()*** parameters: \n",
     "- ***universe***: Single instrument or list of instruments to request\n",
     "    - Type: String or list\n",
-    "    - Optionnal: No  \n",
+    "    - Optional: No  \n",
     "- ***fields***: Single field or list of fields to request\n",
     "    - Type: String or list\n",
-    "    - Optionnal: Yes  \n",
+    "    - Optional: Yes  \n",
     "- ***parameters***: Additional parameters for Fundamental & Reference fields (\"TR.\" fields)\n",
     "    - Type: Dictionary\n",
-    "    - Optionnal: Yes  \n",
+    "    - Optional: Yes  \n",
     "    \n",
     "**get_data()** returns a pandas.DataFrame with fields in columns and instruments as row index.  \n",
     "It raises exceptions on error and when no data is available"

Examples/1-Access/EX-1.01.02-GetHistory.ipynb

@@ -31,23 +31,23 @@
     "***get_history()*** parameters: \n",
     "- ***universe***: Single instrument or list of instruments to request\n",
     "    - Type: String or list\n",
-    "    - Optionnal: No  \n",
+    "    - Optional: No  \n",
     "- ***fields***: Single field or list of fields to request\n",
     "    - Type: String or list\n",
-    "    - Optionnal: Yes  \n",
+    "    - Optional: Yes  \n",
     "-  ***interval***: Data sampling interval  \n",
     "    - Type: String\n",
     "    - Supported values: *tick, tas, taq, minute, 1min, 5min, 10min, 30min, 60min, hourly, 1h, daily, 1d, 1D, 7D, 7d, weekly, 1W, monthly, 1M, quarterly, 3M, 6M, yearly, 1Y*     \n",
-    "    - Optionnal: Yes  \n",
+    "    - Optional: Yes  \n",
     "-  ***start***: The start date and timestamp of the requested history\n",
     "    - Type: String expressed in ISO8601 with UTC only\n",
-    "    - Optionnal: Yes  \n",
+    "    - Optional: Yes  \n",
     "-  ***end***: The end date and timestamp of the requested history  \n",
     "    - Type: String expressed in ISO8601 with UTC only\n",
-    "    - Optionnal: Yes  \n",
+    "    - Optional: Yes  \n",
     "-  ***adjustments*** : Tells the system whether to apply or not CORAX (Corporate Actions) events or exchange/manual corrections or price and volume adjustment according to trade/quote qualifier summarization actions to historical time series data. \n",
     "    - Type: String expressed in ISO8601 with UTC only\n",
-    "    - Optionnal: Yes  \n",
+    "    - Optional: Yes  \n",
     "    - Supported values:\n",
     "        - exchangeCorrection - Apply exchange correction adjustment to historical pricing\n",
     "        - manualCorrection - Apply manual correction adjustment to historical pricing i.e. annotations made by content analysts\n",