Fix article and punctuation slips in Draft PEPs

peps/pep-0653.rst

@@ -98,7 +98,7 @@ A match statement performs a sequence of pattern matches. In general, matching a
 
 To determine whether a value can match a particular kind of pattern, we add the ``__match_container__``
 and ``__match_class__`` attributes.
-This allows the kind of a value to be determined in a efficient fashion.
+This allows the kind of a value to be determined in an efficient fashion.
 
 Specification
 =============
@@ -216,7 +216,7 @@ translates to::
     if $value != LITERAL:
         FAIL
 
-except when the literal is one of ``None``, ``True`` or ``False`` ,
+except when the literal is one of ``None``, ``True`` or ``False``,
 when it translates to::
 
     if $value is not LITERAL:

peps/pep-0748.rst

@@ -773,7 +773,7 @@ substantially more restricted than OpenSSL in many ways, as it has a much more
 restricted class of users. One of these substantial restrictions is in
 controlling supported cipher suites.
 
-Ciphers in Network Framework are represented by a Objective-C ``uint16_t`` enum.
+Ciphers in Network Framework are represented by an Objective-C ``uint16_t`` enum.
 This enum has one entry per cipher suite, with no aggregate entries, meaning
 that it is not possible to reproduce the meaning of an OpenSSL cipher string
 like ``“ECDH+AESGCM”`` without hand-coding which categories each enum member
@@ -842,7 +842,7 @@ ciphers can be enabled or disabled globally with
 ``SSL_CipherPrefSetDefault(PRInt32 cipher, PRBool enabled)``, and
 ``SSL_CipherPrefSet(PRFileDesc *fd, PRInt32 cipher, PRBool enabled)`` for a
 connection. The cipher ``PRInt32`` number is a signed 32-bit integer that
-directly corresponds to an registered IANA id, e.g. ``0x1301`` is
+directly corresponds to a registered IANA id, e.g. ``0x1301`` is
 ``TLS_AES_128_GCM_SHA256``. Contrary to OpenSSL, the preference order of ciphers
 is fixed and cannot be modified at runtime.
 
@@ -1447,7 +1447,7 @@ All of the above assumes that users want to use the module in a secure way.
 Sometimes, users want to do imprudent things like disable certificate validation
 for testing purposes. To this end, we propose a separate ``insecure`` module
 that allows users to do this. This module contains insecure variants of the
-configuration, context, and implementation objects, which allow to disable
+configuration, context, and implementation objects, which allow disabling
 certificate validation as well as the server hostname check.
 
 This functionality is placed in a separate module to make it as hard as possible

peps/pep-0786.rst

@@ -270,7 +270,7 @@ Minimal Width Representation Convention
 '''''''''''''''''''''''''''''''''''''''
 
 This idea was fiercely entertained only due to its lossless behavior, however it
-is a obstacle to ergonomics in every candidate use case. These arguments about
+is an obstacle to ergonomics in every candidate use case. These arguments about
 the aesthetics of string rendering are not irrational or about personal taste,
 but rather they are crucial in how information is communicated to the end user.