Minor fixes (#25059)

1) Examples: Remove double space between "option:" and "value"
2) Documentation: Fix rendering usses
3) Documentation: Remove `required: true` to match argspec

lib/ansible/modules/network/cloudengine/ce_netstream_template.py

@@ -90,29 +90,29 @@ EXAMPLES = '''
 
   - name: Config ipv4 netstream record
     ce_netstream_template:
-      state:  present
-      type:  ip
-      record_name:  test
+      state: present
+      type: ip
+      record_name: test
       provider: "{{ cli }}"
   - name: Undo ipv4 netstream record
     ce_netstream_template:
-      state:  absent
-      type:  ip
-      record_name:  test
+      state: absent
+      type: ip
+      record_name: test
       provider: "{{ cli }}"
   - name: Config ipv4 netstream record collect_counter
     ce_netstream_template:
-      state:  present
-      type:  ip
-      record_name:  test
-      collect_counter:  bytes
+      state: present
+      type: ip
+      record_name: test
+      collect_counter: bytes
       provider: "{{ cli }}"
   - name: Undo ipv4 netstream record collect_counter
     ce_netstream_template:
-      state:  absent
-      type:  ip
-      record_name:  test
-      collect_counter:  bytes
+      state: absent
+      type: ip
+      record_name: test
+      collect_counter: bytes
       provider: "{{ cli }}"
 '''