The 1x1 grid will be added to your document where your cursor is.
If your screen isn’t big enough, you’ll see a three-dot menu icon on the right side of the formatting menu that’s above the document editing space. You’ll need to click the three-dot menu icon to see the table’s formatting options. If you don’t see the three-dot menu icon, click inside the table or it’s edges. The paint bucket icon will allow you to change the color of the background within the table. The pencil icon above a color will let you change the color of the border. The icon of 3 lines of different widths will let you change the width of your border. The icon with 3 lines of different styles lets you change your current border to either a solid, dashed, or dots.
If you want a border on all sides of the paragraph, for instance, you’ll need to select every border except the last one. You can also change the border appearance, if it’s dashed or solid, as well as its color and thickness.
That window will close and you’ll see your border around your paragraph. You can repeat these steps as much as you like or edit your existing border by highlighting the paragraph inside the border and going to Format > Paragraph styles > Borders and shading and changing the values on that window.