🔧 Fix typo errors

1. Sentences should be started with a capital letter
2. Variables should be highlighted with a code style

05_Day_Arrays/05_day_arrays.md

@@ -733,10 +733,10 @@ const webTechs = [
     const shoppingCart = ['Milk', 'Coffee', 'Tea', 'Honey']
     ```
 
-   - add 'Meat' in the beginning of your shopping cart if it has not been already added
-   - add Sugar at the end of you shopping cart if it has not been already added
-   - remove 'Honey' if you are allergic to honey
-   - modify Tea to 'Green Tea'
+   - Add `Meat` in the beginning of your shopping cart if it has not been already added
+   - Add `Sugar` at the end of your shopping cart if it has not been already added
+   - Remove `Honey` if you are allergic to honey
+   - Modify `Tea` to `Green Tea`
 1. In countries array check if 'Ethiopia' exists in the array if it exists print 'ETHIOPIA'. If it does not exist add to the countries list.
 1. In the webTechs array check if Sass exists in the array  and if it exists print 'Sass is a CSS preprocess'. If it does not exist add Sass to the array and print the array.
 1. Concatenate the following two variables and store it in a fullStack variable.