fix some typos from module contrib to man

Signed-off-by: Aaron.L.Xu <likexu@harmonycloud.cn>

man/src/container/create-example.md

@@ -31,5 +31,5 @@ docker create --device-cgroup-rule='c 42:* rmw' -name my-container my-image
 Then, a user could ask `udev` to execute a script that would `docker exec my-container mknod newDevX c 42 <minor>`
 the required device when it is added.
 
-NOTE: initially present devices still need to be explicitely added to
+NOTE: initially present devices still need to be explicitly added to
 the create/run command

man/src/container/create.md

@@ -60,7 +60,7 @@ Use `df <source-dir>` to figure out the source mount and then use
 `findmnt -o TARGET,PROPAGATION <source-mount-dir>` to figure out propagation
 properties of source mount. If `findmnt` utility is not available, then one
 can look at mount entry for source mount point in `/proc/self/mountinfo`. Look
-at `optional fields` and see if any propagaion properties are specified.
+at `optional fields` and see if any propagation properties are specified.
 `shared:X` means mount is `shared`, `master:X` means mount is `slave` and if
 nothing is there that means mount is `private`.
 

man/src/plugin/ls.md

@@ -36,7 +36,7 @@ Filter output based on these conditions:
     ID                  NAME                                    DESCRIPTION                         ENABLED
     869080b57404        tiborvass/sample-volume-plugin:latest   A sample volume plugin for Docker   true
 
-## Display plguins with `volumedriver` capability
+## Display plugins with `volumedriver` capability
 
     $ docker plugin ls --filter capability=volumedriver --format "table {{.ID}}\t{{.Name}}"
     ID                  Name