some grammatical errors

Signed-off-by: Xinbo Weng <xihuanbo_0521@zju.edu.cn>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

image/spec/v1.1.md

@@ -99,7 +99,7 @@ This specification uses the following terms:
         <code>my-app:3.1.4</code>, <code>my-app</code> is the <i>Repository</i>
         component of the name. A repository name is made up of slash-separated
         name components, optionally prefixed by a DNS hostname. The hostname
-        must follow comply with standard DNS rules, but may not contain
+        must comply with standard DNS rules, but may not contain
         <code>_</code> characters. If a hostname is present, it may optionally
         be followed by a port number in the format <code>:8080</code>.
         Name components may contain lowercase characters, digits, and

image/spec/v1.2.md

@@ -99,7 +99,7 @@ This specification uses the following terms:
         <code>my-app:3.1.4</code>, <code>my-app</code> is the <i>Repository</i>
         component of the name. A repository name is made up of slash-separated
         name components, optionally prefixed by a DNS hostname. The hostname
-        must follow comply with standard DNS rules, but may not contain
+        must comply with standard DNS rules, but may not contain
         <code>_</code> characters. If a hostname is present, it may optionally
         be followed by a port number in the format <code>:8080</code>.
         Name components may contain lowercase characters, digits, and

image/spec/v1.md

@@ -440,7 +440,7 @@ f60c56784b83/
         my-app-tools
 ```
 
-This example change is going add a configuration directory at `/etc/my-app.d`
+This example change is going to add a configuration directory at `/etc/my-app.d`
 which contains a default config file. There's also a change to the
 `my-app-tools` binary to handle the config layout change. The `f60c56784b83`
 directory then looks like this: