Document mip installation.

Author: peterhinch

v3/docs/DRIVERS.md

@@ -42,9 +42,14 @@ goes outside defined bounds.
 
 # 2. Installation and usage
 
-The drivers require firmware version >=1.15. The drivers are in the primitives
-package. To install copy the `primitives` directory and its contents to the
-target hardware.
+The latest release build of firmware or a newer nightly build is recommended.
+To install the library, connect the target hardware to WiFi and issue:
+```python
+import mip
+mip.install("github:peterhinch/micropython-async/v3/primitives")
+```
+For non-networked targets use `mpremote` as described in
+[the official docs](http://docs.micropython.org/en/latest/reference/packages.html#installing-packages-with-mpremote).
 
 Drivers are imported with:
 ```python

v3/docs/THREADING.md

@@ -16,6 +16,15 @@ the `ThreadSafeFlag` class does not work under the Unix build. The classes
 presented here depend on this: none can be expected to work on Unix until this
 is fixed.
 
+To install the threadsafe classes discussed here, connect the target hardware
+to WiFi and issue:
+```python
+import mip
+mip.install("github:peterhinch/micropython-async/v3/threadsafe")
+```
+For non-networked targets use `mpremote` as described in
+[the official docs](http://docs.micropython.org/en/latest/reference/packages.html#installing-packages-with-mpremote).
+
 ###### [Main README](../README.md)
 ###### [Tutorial](./TUTORIAL.md)
 

v3/docs/TUTORIAL.md

@@ -118,12 +118,16 @@ CPython V3.8 and above.
 
 ## 0.1 Installing uasyncio
 
-Firmware builds after V1.13 incorporate `uasyncio`. Check the firmware version
-number reported on boot and upgrade if necessary.
-
+The latest release build of firmware or a newer nightly build is recommended.
 This repository has optional unofficial primitives and extensions. To install
-these the repo should be cloned to a PC. The directories `primitives` and
-`threadsafe` (with contents) should be copied to the hardware plaform.
+these, connect the target hardware to WiFi and issue:
+```python
+import mip
+mip.install("github:peterhinch/micropython-async/v3/primitives")
+mip.install("github:peterhinch/micropython-async/v3/threadsafe")
+```
+For non-networked targets use `mpremote` as described in
+[the official docs](http://docs.micropython.org/en/latest/reference/packages.html#installing-packages-with-mpremote).
 
 ###### [Main README](../README.md)