Replace Chinese quotes with English quotes

Change-Id: I4c0623c8a1ca9ed8ef0e517cdba8b411bf17b3a4

doc/source/glossary.rst

@@ -15,7 +15,7 @@
 Qinling Glossary
 ================
 
-As the Qinling project evolves, it’s important that people working on Qinling,
+As the Qinling project evolves, it's important that people working on Qinling,
 users using Qinling, and operators deploying Qinling use a common set of
 terminology in order to avoid misunderstandings and confusion. To that end, we
-are providing the following glossary of terms.
+are providing the following glossary of terms.

doc/source/specs/function_versioning.rst

@@ -10,7 +10,7 @@ Support Qinling function versioning
 
 https://storyboard.openstack.org/#!/story/2001587
 
-Function versions are like git commits, they’re snapshots of your project
+Function versions are like git commits, they're snapshots of your project
 history. Each version has a number that serves as its ID, starting with 1 and
 incrementing up, and never reused. The code for a published version of a
 function is immutable (i.e. cannot be changed). So, a version number

tools/gate/kubeadm/playbook/roles/docker/tasks/ubuntu.yml

@@ -5,7 +5,7 @@
     state: present
     update_cache: yes
 
-- name: Add Docker’s official GPG key
+- name: Add Docker's official GPG key
   apt_key:
     url: https://download.docker.com/linux/ubuntu/gpg
     state: present