Fix typos and small enhancement of docu

docs/modules/node.md

@@ -257,6 +257,10 @@ An array containing entries for `lfs_addr`, `lfs_size`, `spiffs_addr` and `spiff
 print("The LFS size is " .. node.getpartitiontable().lfs_size)
 ```
 
+#### See also
+[`node.setpartitiontable()`](#nodesetpartitiontable)
+
+
 ## node.heap()
 
 Returns the current available heap size in bytes. Note that due to fragmentation, actual allocations of this size may not be possible.
@@ -459,6 +463,10 @@ Not applicable.  The ESP module will be rebooted for a valid new set, or a Lua e
 node.setpartitiontable{lfs_size = 0x20000, spiffs_addr = 0x120000, spiffs_size = 0x20000}
 ```
 
+#### See also
+[`node.getpartitiontable()`](#nodegetpartitiontable)
+
+
 
 ## node.sleep()