zipfs:Add Documentation for zipfs

Signed-off-by: anjiahao <anjiahao@xiaomi.com>

Documentation/components/filesystem.rst

@@ -213,3 +213,44 @@ Blank line && New line delim
     /dev/partition7   offset 0x00480000, size 0x00010000
     /dev/data         offset 0x00500000, size 0x00aff000
     /dev/txtable      offset 0x00fff000, size 0x00001000
+
+ZipFS
+=====
+
+Zipfs is a read only file system that mounts a zip file as a NuttX file system through the NuttX VFS interface.
+This allows users to read files while decompressing them, without requiring additional storage space.
+
+CONFIG
+------
+
+.. code-block:: c
+
+    CONFIG_FS_ZIPFS=y
+    CONFIG_LIB_ZLIB=y
+
+Example
+-------
+
+1. `./tools/configure.sh sim:zipfs` build sim platform with zipfs support.
+
+2. `make` build NuttX.
+
+3. `./nuttx` run NuttX.
+
+4. `nsh> mount -t hostfs -o /home/<your host name>/work /host` mount host directory to /host.
+
+5. `nsh> mount -t zipfs -o /host/test.zip /zip` mount zip file to /zipfs.
+
+6. Use cat/ls command to test.
+
+.. code-block:: c
+
+    nsh> ls /zip
+    /zip:
+     a/1
+     a/2
+    nsh> cat /zip/a/1
+    this is zipfs test 1
+    nsh> cat /zip/a/2
+    this is zipfs test 2
+