PEP 599: Fixes for ARMv7 and max gcc symbol version (#1181)

* More precise microarchitecture for ARMv7
* Fix typo with maximum gcc symbol version
* Fix formatting in footer

pep-0599.rst

@@ -83,12 +83,12 @@ the ``manylinux2014`` tag:
  x86_64
  i686
  aarch64
- armhfp
+ armv7l
  ppc64
  ppc64le
  s390x
 
- This list adds support for ARM (aarch64, armhfp) and PowerPC
+ This list adds support for ARMv7 (armv7l), ARMv8 (aarch64) and PowerPC
  (ppc64, ppc64le) architectures supported by the CentOS Alternative
  Architecture Special Interest Group, as well as the IBM Z (s390x)
  architecture. [5]_
@@ -166,7 +166,7 @@ the ``manylinux2014`` tag:
  GLIBC_2.17
  CXXABI_1.3.7
  GLIBCXX_3.4.19
- GCC_4.8.5
+ GCC_4.8.0
 
  As an example, ``manylinux2014`` wheels may include binary
  artifacts that require ``glibc`` symbols at version ``GLIBC_2.12``,
@@ -229,7 +229,7 @@ Specifically, the algorithm we propose is::
  "linux-x86_64",
  "linux-i686",
  "linux-aarch64",
- "linux-armhfp",
+ "linux-armv7l",
  "linux-ppc64",
  "linux-ppc64le",
  "linux-s390x",
@@ -280,19 +280,18 @@ References
 
 .. [1] CentOS Product Specifications
  (https://wiki.centos.org/About/Product)
-.. [2] PEP 425 -- Compatibility Tags for Built Distributions
+.. [2] PEP 425: Compatibility Tags for Built Distributions
  (https://www.python.org/dev/peps/pep-0425/)
 .. [3] Tracking issue for manylinux2010 rollout
  (https://github.com/pypa/manylinux/issues/179)
 .. [4] Red Hat Universal Base Image 7
  (https://access.redhat.com/containers/?tab=overview#/registry.access.redhat.com/ubi7)
- (https://wiki.centos.org/SpecialInterestGroup/AltArch)
 .. [5] The CentOS Alternative Architecture Special Interest Group
  (https://wiki.centos.org/SpecialInterestGroup/AltArch)
-.. [6] PEP 3149
- https://www.python.org/dev/peps/pep-3149/
+.. [6] PEP 3149: ABI version tagged .so files
+ (https://www.python.org/dev/peps/pep-3149/)
 .. [7] SOABI support for Python 2.X and PyPy
- https://github.com/pypa/pip/pull/3075
+ (https://github.com/pypa/pip/pull/3075)
 .. [8] auditwheel
  (https://github.com/pypa/auditwheel/)