change write operations title

(cherry picked from commit 6ef897c)

Author: shuangela

source/usage-examples.txt

@@ -20,7 +20,7 @@ Usage Examples
 .. toctree::
 
    Find Operations </usage-examples/find-operations>
-   Write Operations </usage-examples/write-operations>
+   Write Operation Examples </usage-examples/write-operations>
    Bulk Operations </usage-examples/bulkWrite>
    Monitor Data Changes </usage-examples/changestream>
    Count Documents Method Example </usage-examples/count>

source/usage-examples/write-operations.txt

@@ -1,6 +1,6 @@
-================
-Write Operations
-================
+========================
+Write Operation Examples
+========================
 
 .. meta::
    :description: Learn by example: how to insert, update, and delete data by using the {+driver-long+}.