Added covid PNGs

Author: gto76

README.md

@@ -3126,7 +3126,7 @@ y 2
 dtype: int64
 ```
 
-```python
+```text
 +-------------+-------------+-------------+---------------+
 | | 'sum' | ['sum'] | {'s': 'sum'} |
 +-------------+-------------+-------------+---------------+
@@ -3135,7 +3135,7 @@ dtype: int64
 +-------------+-------------+-------------+---------------+
 ```
 
-```python
+```text
 +-------------+-------------+-------------+---------------+
 | | 'rank' | ['rank'] | {'r': 'rank'} |
 +-------------+-------------+-------------+---------------+
@@ -3197,7 +3197,7 @@ b 4 5
 c 6 7
 ```
 
-```python
+```text
 +------------------------+---------------+------------+------------+--------------------------+
 | how/join | 'outer' | 'inner' | 'left' | description |
 +------------------------+---------------+------------+------------+--------------------------+
@@ -3244,7 +3244,7 @@ a 1 2
 b 3 4
 ```
 
-```python
+```text
 +-------------+-------------+-------------+---------------+
 | | 'sum' | ['sum'] | {'x': 'sum'} |
 +-------------+-------------+-------------+---------------+
@@ -3254,7 +3254,7 @@ b 3 4
 +-------------+-------------+-------------+---------------+
 ```
 
-```python
+```text
 +-------------+-------------+-------------+---------------+
 | | 'rank' | ['rank'] | {'x': 'rank'} |
 +-------------+-------------+-------------+---------------+
@@ -3314,7 +3314,7 @@ c 7 8
  c 7 8 6
 ```
 
-```python
+```text
 +-------------+-------------+-------------+-------------+---------------+
 | | 'sum' | 'rank' | ['rank'] | {'x': 'rank'} |
 +-------------+-------------+-------------+-------------+---------------+
@@ -3346,6 +3346,7 @@ Plotly
 
 ### Covid Deaths by Continent
 
+![Covid Deaths](web/covid_deaths.png)
 <div id="2a950764-39fc-416d-97fe-0a6226a3095f" class="plotly-graph-div" style="height:420px; width:100%;"></div>
 </div>
 
@@ -3368,6 +3369,7 @@ plotly.express.line(summed, x='Date', y='Total Deaths per Million', color='Conti
 
 ### Confirmed Covid Cases, Dow Jones, Gold, and Bitcoin Price
 
+![Covid Cases](web/covid_cases.png)
 <div id="e23ccacc-a456-478b-b467-7282a2165921" class="plotly-graph-div" style="height:400px; width:100%;"></div>
 
 ```python