AFS: Documentation: fix a few typos in afs.rst

Fix typos (punctuation, grammar, spelling) in afs.rst.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: linux-afs@lists.infradead.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20210117213351.1075-1-rdunlap@infradead.orgSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/filesystems/afs.rst

@@ -109,7 +109,7 @@ Mountpoints
 AFS has a concept of mountpoints. In AFS terms, these are specially formatted
 symbolic links (of the same form as the "device name" passed to mount).  kAFS
 presents these to the user as directories that have a follow-link capability
-(ie: symbolic link semantics).  If anyone attempts to access them, they will
+(i.e.: symbolic link semantics).  If anyone attempts to access them, they will
 automatically cause the target volume to be mounted (if possible) on that site.
 
 Automatically mounted filesystems will be automatically unmounted approximately
@@ -144,7 +144,7 @@ looks up a cell of the same name, for example::
 Proc Filesystem
 ===============
 
-The AFS modules creates a "/proc/fs/afs/" directory and populates it:
+The AFS module creates a "/proc/fs/afs/" directory and populates it:
 
   (*) A "cells" file that lists cells currently known to the afs module and
       their usage counts::
@@ -201,7 +201,7 @@ And then run as::
 	./klog
 
 Assuming it's successful, this adds a key of type RxRPC, named for the service
-and cell, eg: "afs@<cellname>".  This can be viewed with the keyctl program or
+and cell, e.g.: "afs@<cellname>".  This can be viewed with the keyctl program or
 by cat'ing /proc/keys::
 
 	[root@andromeda ~]# keyctl show
@@ -211,7 +211,7 @@ by cat'ing /proc/keys::
 	111416553 --als--v      0     0   \_ rxrpc: afs@CAMBRIDGE.REDHAT.COM
 
 Currently the username, realm, password and proposed ticket lifetime are
-compiled in to the program.
+compiled into the program.
 
 It is not required to acquire a key before using AFS facilities, but if one is
 not acquired then all operations will be governed by the anonymous user parts