Port GitHub wiki pages to repo markdown files

docs/0CC vs FT effects type order.md

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+# 0CC vs FT effect type order
+
+0CC for some reason uses a slightly different effects type order within the tracker, but converts to FT 050B+ effects type order when saved to a file.
+
+In Dn-FT v.0.5.0.0, this conversion logic was disturbed, resulting in 0CC effects type order not being properly converted back to FT 050B+ when saving. This issue has been fixed in [commit df78460](https://github.com/Dn-Programming-Core-Management/Dn-FamiTracker/commit/df78460aae403daf2bb68891c788248bbc8a8a02).
+
+my guess is cross compatibility with earlier 0CC versions that didn't respect FT 050B+'s effect type order?
+we can't do anything to change it, now.
+
+```
+After EF_SUNSOFT_ENV_LO (Jxx S5B),
+FT order:
+    EF_NOTE_RELEASE         (Lxx)
+    EF_GROOVE               (Oxx)
+    EF_TRANSPOSE            (Txy)
+    EF_N163_WAVE_BUFFER     (Zxx N163)
+    EF_FDS_VOLUME           (Exx FDS)
+    EF_FDS_MOD_BIAS         (Zxx FDS)
+    EF_SUNSOFT_NOISE        (Wxx S5B)
+    EF_VRC7_PORT            (Hxx VRC7)
+    EF_VRC7_WRITE           (Ixx VRC7)
+
+0CC order:
+    EF_SUNSOFT_NOISE        (Wxx S5B)
+    EF_VRC7_PORT            (Hxx VRC7)
+    EF_VRC7_WRITE           (Ixx VRC7)
+    EF_NOTE_RELEASE         (Lxx)
+    EF_GROOVE               (Oxx)
+    EF_TRANSPOSE            (Txy)
+    EF_N163_WAVE_BUFFER     (Zxx N163)
+    EF_FDS_VOLUME           (Exx FDS)
+    EF_FDS_MOD_BIAS         (Zxx FDS)
+```

docs/0CC-Dn-FT NSF driver update sequence.md

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+# 0CC-Dn-FT NSF driver update sequence
+
+This doc aims to detail the update order as observed in the NSF driver.
+
+Ideally, the NSF driver should be the de-facto standard in how FT modules should
+behave, but since the tracker has desynced in feature parity, this may not be
+the case.
+
+Regardless, this should serve as a reference as to how the driver updates in
+sequence.
+
+```
+ft_music_play
+    (delay handling)
+    (tempo handling)
+    ft_do_row_update
+        (frame handling)
+        ft_read_channels (foreach channels do:)
+            ft_read_pattern
+                ft_read_note
+                    (switch case pattern command)
+                        (handle volume commands)
+                        (handle instrument commands)
+                        (handle effect commands)
+                    ft_push_echo_buffer
+                    (handle note off)
+                    (handle note release)
+                    (load echo buffer)
+                    ft_push_echo_buffer
+                    (handle note)
+            ft_read_is_done
+    ft_skip_row_update (when no updates are available)
+        (tempo handling)
+    ft_loop_fx_state
+        (Sxx handling)
+        (delayed transpose/release handling)
+    ft_loop_channels (foreach channels do:)
+        ft_run_effects (handles the rest of the other effects)
+        ft_run_instrument
+        ft_calc_period
+        (Nxy handling)
+    ft_update_<chip> (foreach chip do:)
+        (register writes)
+```