diff --git a/docs/api/srfi/106.md b/docs/api/srfi/106.md
index dc25bf94..43f489cd 100644
--- a/docs/api/srfi/106.md
+++ b/docs/api/srfi/106.md
@@ -166,102 +166,145 @@ Calls a given procedure with a given socket as an argument.
 
 If given `proc` returns then it returns the result of `proc` and socket will be automatically closed. If `proc` doesn't return then given socket won't be closed automatically. It's analogy of `call-with-port`.
 
-
-
-
-
-
-Following, address-family, address-info, socket-domain, ip-protocol, message-type and shutdown-method must be implemented as macros.
-address-family name -> address-family
-Returns proper address family from given name.
-Implementation must support at least following names and must have the described behaviour.
-inet
-Returns *af-inet*
-inet6
-Returns *af-inet6*
-unspec
-Returns *af-unspec*
-Implementation may support more names such as unix or local or other names.
-address-info names ... -> address-info
-Returns merged address info flags from given names.
-Implementation must support at least following names and must have the described behaviour.
-canoname
-Returns *ai-canonname*
-numerichost
-Returns *ai-numerichost*
-v4mapped
-Returns *ai-v4mapped*
-all
-Returns *ai-all*
-addrconfig
-Returns *ai-addrconfig*
-Implementation may support more names.
-socket-domain name -> socket-domain
-Returns socket domain flags from given name.
-Implementation must support at least following names and must have the described behaviour.
-stream
-Returns *sock-stream*
-datagram
-Returns *sock-dgram*
-Implementation may support more names.
-ip-protocol name -> ip-protocol
-Returns ip-protocol flag from given name.
-Implementation must support at least following names and must have the described behaviour.
-ip
-Returns *ipproto-ip*
-tcp
-Returns *ipproto-tcp*
-udp
-Returns *ipproto-udp*
-Implementation may support more names.
-message-type names ... -> message-type
-Returns message type flag from given name.
-The flag can be used both socket-recv and socket-send.
-Implementation must support at least following names and must have the described behaviour.
-none
-Returns no flag.
-peek
-Returns *msg-peek*
-oob
-Returns *msg-oob*
-wait-all
-Returns *msg-waitall*
-Implementation may support more names.
-shutdown-method names ... -> shutdown-method
-Returns shutdown method flags from given names.
-Implementation must support at least following names and must have the described behaviour.
-read
-Returns *shut-rd*
-write
-Returns *shut-wr*
-If shutdown-method is given both read and write, then it must return *shut-rdwr*
-socket-merge-flags flags ... -> new-flags
-Merges given flags and returns a new flag.
-socket-purge-flags base-flag flags ... -> new-flags
-Removes flags from base-flag if exists and returns a new flag.
-
 # address-family
 
+*Syntax*
+
+    (address-family name) -> address-family
+
+Returns proper address family from given name.
+
+    inet
+
+Returns `*af-inet*`
+
+    inet6
+
+Returns `*af-inet6*`
+
+    unspec
+
+Returns `*af-unspec*`
+
 # address-info 
 
+*Syntax*
+
+    (address-info names ...) -> address-info
+
+Returns merged address info flags from given names.
+
+    canoname
+
+Returns `*ai-canonname*`
+
+    numerichost
+
+Returns `*ai-numerichost*`
+
+    v4mapped
+
+Returns `*ai-v4mapped*`
+
+    all
+
+Returns `*ai-all*`
+
+    addrconfig
+
+Returns `*ai-addrconfig*`
+
 # socket-domain
 
+*Syntax*
+
+    (socket-domain name) -> socket-domain
+
+Returns socket domain flags from given name.
+
+    stream
+
+Returns `*sock-stream*`
+
+    datagram
+
+Returns `*sock-dgram*`
+
 # ip-protocol
 
+*Syntax*
+
+    (ip-protocol name) -> ip-protocol
+
+Returns ip-protocol flag from given name.
+
+   ip
+
+Returns `*ipproto-ip*`
+
+    tcp
+
+Returns `*ipproto-tcp*`
+
+    udp
+
+Returns `*ipproto-udp*`
+
 # message-type
 
+*Syntax*
+
+    (message-type names ...) -> message-type
+
+Returns message type flag from given name.
+
+The flag can be used both socket-recv and socket-send.
+
+    none
+
+Returns no flag.
+
+    peek
+
+Returns `*msg-peek*`
+
+    oob
+
+Returns `*msg-oob*`
+
+    wait-all
+
+Returns `*msg-waitall*`
+
 # shutdown-method
 
+*Syntax*
+
+    (shutdown-method names ...) -> shutdown-method
+
+Returns shutdown method flags from given names.
+
+    read
+
+Returns `*shut-rd*`
+
+    write
+
+Returns `*shut-wr*`
+
+If shutdown-method is given both read and write, then it must return `*shut-rdwr*`
+
 # socket-merge-flags
 
+    (socket-merge-flags flags ...) -> new-flags
+
+Merges given `flags` and returns a new flag.
+
 # socket-purge-flags
 
+    (socket-purge-flags base-flag flags ...) -> new-flags
 
-
-
-
-
-
+Removes `flags` from `base-flag` if exists and returns a new flag.
 
 # \*af-unspec\*