PEP 751: Some minor copy edits (#4313)

Author: pfmoore

peps/pep-0751.rst

@@ -235,7 +235,7 @@ consistent order. Usage of inline tables SHOULD also be kept consistent.
   file).
 - Tools supporting dependency groups MUST also support extras.
 - Tools SHOULD explicitly set this key to an empty array to signal that the
-  inputs used to generate the lock file had no extras (e.g. a ``pyproject.toml``
+  inputs used to generate the lock file had no dependency groups (e.g. a ``pyproject.toml``
   file had no ``[dependency-groups]`` table), signalling that the lock file
   is, in effect, multi-use even if it only looks to be single-use.
 
@@ -361,6 +361,7 @@ consistent order. Usage of inline tables SHOULD also be kept consistent.
   contains.
 - Tools MAY choose to not support version control systems, both from a locking
   and/or installation perspective.
+- Tools MAY choose to only support a subset of the available VCS types.
 - Tools SHOULD provide a way for users to opt in/out of using version control
   systems.
 - Installation from a version control system is considered originating from a
@@ -1094,7 +1095,7 @@ use-cases based on extras and dependency groups. It is up to the tool(s) you use
 that decide whether multi-use lock files are possible. All tools dealing with
 lock files at least support single-use lock files. Neither type of lock file
 is better or worse than the other, it just changes how much can be written down
-in a single file (which can influence how manageable).
+in a single file.
 
 Lock files that follow this PEP can be installed by any installer that
 implements the specification. This allows users of a lock file to perform an
@@ -1269,7 +1270,7 @@ Recording the creation date of the lock file
 ============================================
 
 To know how potentially stale the lock file was, an earlier proposal suggested
-recording the creation date of the lock file. But for some same merge conflict
+recording the creation date of the lock file. But for the same merge conflict
 reasons as storing the hash of the file contents, this idea was dropped.
 
 
@@ -1315,7 +1316,7 @@ Drop recording the package version
 ==================================
 
 The package version is optional since it can only be reliably recorded when an
-sdist of wheel file is used. And since both sources record the version in file
+sdist or wheel file is used. And since both sources record the version in file
 names it is technically redundant.
 
 But in discussions it was decided the version number is useful for auditing