simplify example container names

This encourages people from making container names depend on release
names.

docs/charts.md

@@ -483,7 +483,7 @@ spec:
     spec:
       restartPolicy: Never
       containers:
-      - name: {{template "fullname" .}}-job
+      - name: post-install-job
         image: "alpine:3.3"
         command: ["/bin/sleep","{{default "10" .Values.sleepyTime}}"]
 

docs/examples/nginx/templates/deployment.yaml

@@ -23,7 +23,7 @@ spec:
         release: {{.Release.Name | quote }}
     spec:
       containers:
-      - name: {{template "fullname" .}}
+      - name: nginx
         # Making image configurable is not necessary. Making imageTag configurable
         # is a nice option for the user. Especially in the strange cases like
         # nginx where the base distro is determined by the tag. Using :latest

docs/examples/nginx/templates/post-install-job.yaml

@@ -25,7 +25,7 @@ spec:
       # more conventional syntax: {{.restartPolicy | default "Never"}}
       restartPolicy: Never
       containers:
-      - name: {{template "fullname" .}}-job
+      - name: post-install-job
         image: "alpine:3.3"
         # All we're going to do is sleep for a minute, then exit.
         command: ["/bin/sleep","{{default "10" .Values.sleepyTime}}"]