write: add page (#17610)

Co-authored-by: Kristopher <[email protected]>

Author: Managor

pages/cisco-ios/write.md

@@ -0,0 +1,16 @@
+# write
+
+> Write data to memory.
+> More information: <https://www.oreilly.com/library/view/cisco-ios-in/0596008694/re869.html#book-content>.
+
+- Write current configuration to memory:
+
+`write memory`
+
+- Delete the configuration in memory:
+
+`write erase`
+
+- Display help:
+
+`write ?`