[docs,man] Fixed typo (#29516)

Signed-off-by: Michael Käufl <docker@c.michael-kaeufl.de>

docs/reference/commandline/build.md

@@ -438,7 +438,7 @@ Specifying the `--isolation` flag without a value is the same as setting `--isol
 
 Once the image is built, squash the new layers into a new image with a single
 new layer. Squashing does not destroy any existing image, rather it creates a new
-image with the content of the squshed layers. This effectively makes it look
+image with the content of the squashed layers. This effectively makes it look
 like all `Dockerfile` commands were created with a single layer. The build
 cache is preserved with this method.
 

man/docker-build.1.md

@@ -62,7 +62,7 @@ set as the **URL**, the repository is cloned locally and then sent as the contex
    **Experimental Only**
    Once the image is built, squash the new layers into a new image with a single
    new layer. Squashing does not destroy any existing image, rather it creates a new
-   image with the content of the squshed layers. This effectively makes it look
+   image with the content of the squashed layers. This effectively makes it look
    like all `Dockerfile` commands were created with a single layer. The build
    cache is preserved with this method.