docs/{uselect,ussl,ustruct}: Use markup adhering to latest docs conventions.

Author: pfalcon

docs/library/uselect.rst

@@ -52,7 +52,7 @@ Methods
 
  Wait for at least one of the registered objects to become ready. Returns
  list of (``obj``, ``event``, ...) tuples, ``event`` element specifies
- which events happened with a stream and is a combination of `select.POLL*`
+ which events happened with a stream and is a combination of ``select.POLL*``
  constants described above. There may be other elements in tuple, depending
  on a platform and version, so don't assume that its size is 2. In case of
  timeout, an empty list is returned.

docs/library/ussl.rst

@@ -13,7 +13,7 @@ Functions
 
 .. function:: ssl.wrap_socket(sock, server_side=False, keyfile=None, certfile=None, cert_reqs=CERT_NONE, ca_certs=None)
 
- Takes a stream `sock` (usually usocket.socket instance of ``SOCK_STREAM`` type),
+ Takes a stream *sock* (usually usocket.socket instance of ``SOCK_STREAM`` type),
  and returns an instance of ssl.SSLSocket, which wraps the underlying stream in
  an SSL context. Returned object has the usual stream interface methods like
  `read()`, `write()`, etc. In MicroPython, the returned object does not expose
@@ -43,4 +43,4 @@ Constants
  ssl.CERT_OPTIONAL
  ssl.CERT_REQUIRED
 
- Supported values for `cert_reqs` parameter.
+ Supported values for *cert_reqs* parameter.

docs/library/ustruct.rst

@@ -18,26 +18,26 @@ Functions
 
 .. function:: calcsize(fmt)
 
- Return the number of bytes needed to store the given `fmt`.
+ Return the number of bytes needed to store the given *fmt*.
 
 .. function:: pack(fmt, v1, v2, ...)
 
- Pack the values `v1`, `v2`, ... according to the format string `fmt`.
+ Pack the values *v1*, *v2*, ... according to the format string *fmt*.
  The return value is a bytes object encoding the values.
 
 .. function:: pack_into(fmt, buffer, offset, v1, v2, ...)
 
- Pack the values `v1`, `v2`, ... according to the format string `fmt`
- into a `buffer` starting at `offset`. `offset` may be negative to count
- from the end of `buffer`.
+ Pack the values *v1*, *v2*, ... according to the format string *fmt*
+ into a *buffer* starting at *offset*. *offset* may be negative to count
+ from the end of *buffer*.
 
 .. function:: unpack(fmt, data)
 
- Unpack from the `data` according to the format string `fmt`.
+ Unpack from the *data* according to the format string *fmt*.
  The return value is a tuple of the unpacked values.
 
 .. function:: unpack_from(fmt, data, offset=0)
 
- Unpack from the `data` starting at `offset` according to the format string
- `fmt`. `offset` may be negative to count from the end of `buffer`. The return
+ Unpack from the *data* starting at *offset* according to the format string
+ *fmt*. *offset* may be negative to count from the end of *buffer*. The return
  value is a tuple of the unpacked values.