Improve grammar/readability in Ocata release notes

Change-Id: I00829cd4e3f1684e0f385484e116387b7bb61cd3

releasenotes/notes/fail_ipa_start_if_ironic_api_invalid-7b78fcaba2141cc5.yaml

@@ -1,8 +1,9 @@
 ---
 fixes:
-  - Accepting ``ipa-api-url`` value specified in the configuration
+  - Values of ``ipa-api-url`` specified in the configuration
-    file that does not start with either ``https://`` or ``http://``.
+    file that do not start with either ``https://`` or ``http://`` are no
-    Such value leads failure while contacting ironic-api.
+    longer accepted.
-    This misconfiguration will be detected on ironic-python-agent start.
+    Such values lead to failure while contacting ironic-api.
+    Such misconfigurations will be detected on ironic-python-agent start.
     An exception will be raised and an error about the invalid value
     will be logged.

releasenotes/notes/handle-ssl-063a91fb7bdcf9b9.yaml

@@ -1,15 +1,16 @@
 ---
 features:
-  - Ironic Python Agent now can access other services
+  - Ironic Python Agent can now access other services
     (Ironic, Inspector, image backend) when those are configured with
     HTTPS endpoints and use custom server certificates or require
     client certificates.
     It is possible to add a custom Certificate Authority (CA) file and client
     certificate files to the deploy ramdisk during build,
     and provide paths to those as corresponding new options
-    in ``ironic_python_agent.conf`` configuration file.
+    in the ``ironic_python_agent.conf`` configuration file.
-    Validation of server certificate can be turned off with ``insecure``
+    Validation of the server certificate can be turned off with the
-    config option or via ``ipa-insecure`` kernel boot parameter.
+    ``insecure`` config option or via the ``ipa-insecure`` kernel boot
+    parameter.
     This should make it possible to run IPA in CI-like environments that use
-    HTTPS endpoints with self-signed sertificates.
+    HTTPS endpoints with self-signed certificates.
 

releasenotes/notes/ipv6-listen-85d40e58156e398f.yaml

@@ -1,5 +1,5 @@
 ---
 fixes:
-  - If booted into a kernel that supports IPv6 Ironic Python Agent
+  - If booted into a kernel that supports IPv6, Ironic Python Agent
     now listens for connections on both the IPv4 and IPv6 wildcard
-    address.
+    addresses.

releasenotes/notes/ipv6-provision-42e9000f6f6a7a3a.yaml

@@ -1,6 +1,6 @@
 ---
 fixes:
   - If using Linux-IO, ISCSI targets now support deploying over
-    a IPv6 network if booted into a IPv6 enabled kernel. IPv6 will
+    an IPv6 network if booted into an IPv6 enabled kernel. IPv6 will
     be used for deployments for all traffic between ironic and IPA
-    if IPA is passed a IPv6 address in the Ironic api url.
+    if IPA is passed an IPv6 address in the Ironic API URL.

releasenotes/notes/limit-qemu-img-ram-usage-d7b7a16ac5e9c917.yaml

@@ -2,4 +2,4 @@
 fixes:
   - |
     Limits the memory usage of ``qemu-img convert`` command to 1 GiB to
-    avoid it from causing the host machine to fail due not enough ram.
+    prevent it from causing the host machine to fail due to not enough RAM.

releasenotes/notes/lldp-error-handling-5b6576b378ef9c3a.yaml

@@ -1,6 +1,6 @@
 ---
 fixes:
-  - Fix LLDP discovery to not fail completely when odd number of bytes is
+  - Fix LLDP discovery to not fail completely when an odd number of bytes is
     received in an LLDP package.
   - Fix raw sockets code to properly propagate exceptions to a caller instead
     of silencing them and returning None (causing failures later).

releasenotes/notes/no-bash-for-grub-c38369af8cc7cf26.yaml

@@ -2,5 +2,5 @@
 fixes:
   - |
     Ironic Python Agent no longer requires 'bash' to be present in the user
-    image when preparing the partition image for local boot,
+    image when preparing the partition image for local boot, and uses the
-    and uses default 'sh' interpreter to run 'grub'-related commands instead.
+    default 'sh' interpreter to run 'grub'-related commands instead.

releasenotes/notes/oslo-config-generator-b0f70b9fb7e23997.yaml

@@ -1,4 +1,4 @@
 ---
 other:
   - Ironic Python Agent now uses ``oslo-config-generator`` to create the
-    sample of configuration file.
+    sample configuration file.

releasenotes/notes/remove-switch_port_descr-switch_chassis_descr-40f2bb37b5f1fdd1.yaml

@@ -1,6 +1,6 @@
 ---
 upgrade:
   - |
-    Two reserved fields ``switch_port_descr`` and
+    Two reserved fields, ``switch_port_descr`` and
-    ``switch_chassis_descr`` were deprecated in
+    ``switch_chassis_descr``, were deprecated in
     Newton cycle and now are removed.

releasenotes/notes/skip-lookup-and-heartbeat-if-apiurl-not-configured-5ae8b04ae1e74673.yaml

@@ -1,5 +1,5 @@
 ---
 fixes:
   - If ipa-api-url is not configured in pxe parameters, skip lookup and heartbeat
-    to avoid ConnectionError when the IPA starts. See https://bugs.launchpad.net/bugs/1643966
+    to avoid ConnectionError when IPA starts. See https://bugs.launchpad.net/bugs/1643966
     for details.

releasenotes/notes/uefi-fallback-266c647f6aff58fd.yaml

@@ -1,6 +1,6 @@
 ---
 fixes:
-  - The ironic-python-agent when writing a partition image now
+  - When writing a partition image, IPA now
-    installs grub to the UEFI fallback path. e.g. EFI/BOOT/BOOTX64.EFI
+    installs grub to the UEFI fallback path (e.g. ``EFI/BOOT/BOOTX64.EFI``).
     The fallback path is used to boot the bare metal node if the NVRAM is
     reset.