Added interface modes to documentation

docs/source/interfaces.rst

@@ -106,7 +106,7 @@ Transport Node, it is rarely useful to configure an interface mode.
      mode, announces will not be automatically broadcasted on
      the interface, and paths to destinations on the interface
      will have a much shorter expiry time. This mode is useful
-     for creating interfaces that are mostly quiet, unless when
+     for creating interfaces that remain quiet, unless when
      someone is actually using them. An example of this could
      be a radio interface serving a wide area, where users are
      expected to connect momentarily, use the network, and then

docs/source/understanding.rst

@@ -817,22 +817,22 @@ different interface modes, and how they are configured.
 .. code-block:: text
 
     Full ────── ✓ ──┐              ┌── ✓ ── Full
-    AP ──────── ✓ ──┼──── Full ────┼── ✕ ── AP
+    AP ──────── ✓ ──┼───> Full >───┼── ✕ ── AP
     Boundary ── ✓ ──┤              ├── ✓ ── Boundary
     Roaming ─── ✓ ──┘              └── ✓ ── Roaming
 
     Full ────── ✕ ──┐              ┌── ✓ ── Full
-    AP ──────── ✕ ──┼───── AP ─────┼── ✕ ── AP
+    AP ──────── ✕ ──┼────> AP >────┼── ✕ ── AP
     Boundary ── ✕ ──┤              ├── ✓ ── Boundary
     Roaming ─── ✕ ──┘              └── ✓ ── Roaming
 
     Full ────── ✓ ──┐              ┌── ✓ ── Full
-    AP ──────── ✓ ──┼── Roaming ───┼── ✕ ── AP
+    AP ──────── ✓ ──┼─> Roaming >──┼── ✕ ── AP
     Boundary ── ✕ ──┤              ├── ✕ ── Boundary
     Roaming ─── ✕ ──┘              └── ✕ ── Roaming
 
     Full ────── ✓ ──┐              ┌── ✓ ── Full
-    AP ──────── ✓ ──┼── Boundary ──┼── ✕ ── AP
+    AP ──────── ✓ ──┼─> Boundary >─┼── ✕ ── AP
     Boundary ── ✓ ──┤              ├── ✓ ── Boundary
     Roaming ─── ✕ ──┘              └── ✕ ── Roaming