Updated FAQ (markdown)

FAQ.md

@@ -18,6 +18,10 @@ The internal management APIs are in gRPC. You can generate the language bindings
 ### Does it support FUSE?
 Yes.
 
+### How is it optimized for small files? How small is small files?
+
+Optimization for small files is actually optimization for large amount of files. The file size does not matter. Filer server would chunk the files.
+
 ### Does it support large files, e.g., 500M ~ 10G?
 Large file will be automatically split into chunks, in `weed filer`, `weed mount`, etc.
 
@@ -52,7 +56,7 @@ See #100 https://github.com/chrislusf/seaweedfs/issues/100
 
 ### How to store large logs?
 
-The log files are usually very large. But SeaweedFS is mostly for small-to-medium large files. How to store them? "weed filer" can help. 
+The log files are usually very large. Use `weed filer` to store them. 
 
 Usually the logs are collected during a long period of time span. Let's say each day's log is about a manageable 128MB. You can store each day's log via "weed filer" under "/logs/" folder. For example: