edits from review by @shirubana

Author: kandersolar

Tutorial 1 - TMY Weather Data.ipynb

@@ -907,7 +907,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.10"
+   "version": "3.7.3"
   }
  },
  "nbformat": 4,

Tutorial 2 - POA Irradiance.ipynb

@@ -14,6 +14,8 @@
     "<div class=\"alert alert-block alert-info\">\n",
     "<b>Let's Explore:</b> <a href='https://pvfree.herokuapp.com'> Click here to see the pvfree Website</a></div>\n",
     "\n",
+    "![pvfree_table](images/pvfree_table.png)\n",
+    "\n",
     "You can search the table of the [CEC modules](https://pvfree.herokuapp.com/cec_modules/). Once you find the desired module, you can get a JSON dictionary of the CEC module parameters from the API. For example, [Canadian Solar Inc. CS5P-220M](https://pvfree.herokuapp.com/cec_modules/1733/) can be downloaded from the API here: https://pvfree.herokuapp.com/api/v1/cecmodule/1733/?format=json. You can copy and paste or use python to call the API. The API also has search filters you can use. For example: https://pvfree.herokuapp.com/api/v1/cecmodule/?format=json&Name__istartswith=canadian&STC__gt=219&STC__lt=221 searches for all modules starting with \"canadian\" and with nameplate between 219-W and 221-W which returns a list of 6 modules in a JSON dictionary. Limiting the short circuit currentl (Isc) to less than 6-A reduces this list to 2 modules."
    ]
   },
@@ -137,7 +139,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.10"
+   "version": "3.7.3"
   }
  },
  "nbformat": 4,