spelling error (#2333)

I was reading through the code and noticed a few spelling errors
orignal -> original
maintaing -> maintaining

Author: vchiley

torchvision/transforms/functional.py

@@ -306,7 +306,7 @@ def resize(img, size, interpolation=Image.BILINEAR):
         img (PIL Image): Image to be resized.
         size (sequence or int): Desired output size. If size is a sequence like
             (h, w), the output size will be matched to this. If size is an int,
-            the smaller edge of the image will be matched to this number maintaing
+            the smaller edge of the image will be matched to this number maintaining
             the aspect ratio. i.e, if height > width, then image will be rescaled to
             :math:`\left(\text{size} \times \frac{\text{height}}{\text{width}}, \text{size}\right)`
         interpolation (int, optional): Desired interpolation. Default is
@@ -555,11 +555,11 @@ def _parse_fill(fill, img, min_pil_version):
 def _get_perspective_coeffs(startpoints, endpoints):
     """Helper function to get the coefficients (a, b, c, d, e, f, g, h) for the perspective transforms.
 
-    In Perspective Transform each pixel (x, y) in the orignal image gets transformed as,
+    In Perspective Transform each pixel (x, y) in the original image gets transformed as,
      (x, y) -> ( (ax + by + c) / (gx + hy + 1), (dx + ey + f) / (gx + hy + 1) )
 
     Args:
-        List containing [top-left, top-right, bottom-right, bottom-left] of the orignal image,
+        List containing [top-left, top-right, bottom-right, bottom-left] of the original image,
         List containing [top-left, top-right, bottom-right, bottom-left] of the transformed
                    image
     Returns:
@@ -582,7 +582,7 @@ def perspective(img, startpoints, endpoints, interpolation=Image.BICUBIC, fill=N
 
     Args:
         img (PIL Image): Image to be transformed.
-        startpoints: List containing [top-left, top-right, bottom-right, bottom-left] of the orignal image
+        startpoints: List containing [top-left, top-right, bottom-right, bottom-left] of the original image
         endpoints: List containing [top-left, top-right, bottom-right, bottom-left] of the transformed image
         interpolation: Default- Image.BICUBIC
         fill (n-tuple or int or float): Pixel fill value for area outside the rotated