docs: fix typos in README file (#5)

* docs: fix typos in README file

* docs: adjust verbiage in README file

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

README.md

@@ -23,9 +23,9 @@ Transfer to Clothing    -50.00
 Total: 923.96
 ```
 
-Besides the `Category` class, create a function (ouside of the class) called `create_spend_chart` that takes a list of categories as an argument. It should return a string that is a bar chart.
+Besides the `Category` class, create a function (outside of the class) called `create_spend_chart` that takes a list of categories as an argument. It should return a string that is a bar chart.
 
-The chart should show the percentage spent in each category passed in to the function. The percentage spent should be calculated only with withdrawals and not with deposits. Down the left side of the chart should be labels 0 - 100. The "bars" in the bar chart should be made out of the "o" character. The height of each bar should be rounded down to the nearest 10. The horizontal line below the bars should go two spaces past the final bar. Each category name should be vertacally below the bar. There should be a title at the top that says "Percentage spent by category".
+The chart should show the percentage spent in each category passed in to the function. The percentage spent should be calculated only with withdrawals and not with deposits. Down the left side of the chart should be labels 0 - 100. The "bars" in the bar chart should be made out of the "o" character. The height of each bar should be rounded down to the nearest 10. The horizontal line below the bars should go two spaces past the final bar. Each category name should be written vertically below the bar. There should be a title at the top that says "Percentage spent by category".
 
 This function will be tested with up to four categories.