[devsite] fix wrong description in Thread Primer (en) (#5163)
diff --git a/doc/site/en/guides/thread-primer/index.md b/doc/site/en/guides/thread-primer/index.md
index b2ba1d1..fe9e6f2 100644
--- a/doc/site/en/guides/thread-primer/index.md
+++ b/doc/site/en/guides/thread-primer/index.md
@@ -7,7 +7,7 @@
<a href="http://threadgroup.org/">Thread<sup>®</sup></a> is an IPv6-based
networking protocol designed for low-power Internet of Things devices in an IEEE
802.15.4-2006 wireless mesh network, commonly called a Wireless Personal Area
-Network (WPAN). Thread is independent of other 802.15.4 mesh networking
+Network (WPAN). Thread is independent of other 802.15 mesh networking
protocols, such a ZigBee, Z-Wave, and Bluetooth LE.
Thread's primary features include:
diff --git a/doc/site/en/guides/thread-primer/ipv6-addressing.md b/doc/site/en/guides/thread-primer/ipv6-addressing.md
index 3f38d73..4385695 100644
--- a/doc/site/en/guides/thread-primer/ipv6-addressing.md
+++ b/doc/site/en/guides/thread-primer/ipv6-addressing.md
@@ -37,8 +37,8 @@
All devices are assigned a Router ID and a Child ID. Each Router maintains a
table of all their Children, the combination of which uniquely identifies a
device within the topology. For example, consider the highlighted nodes in the
-following topology, where the number on a Router (pentagon) is the Router ID,
-and the number on an End Device (circle) is the Child ID:
+following topology, where the number in a Router (pentagon) is the Router ID,
+and the number in an End Device (circle) is the Child ID:
<figure>
<a href="../images/ot-primer-rloc-topology_2x.png"><img src="../images/ot-primer-rloc-topology.png" srcset="../images/ot-primer-rloc-topology.png 1x, ../images/ot-primer-rloc-topology_2x.png 2x" border="0" width="600" alt="OT RLOC Topology" /></a>
@@ -215,12 +215,12 @@
Thread network, specific addresses are reserved for multicast use with different
groups of devices, depending on the scope.
-IPv6 Address | Scope | Delivered to
----- | ---- | ----
-`ff02::1` | Link-Local | All FTDs and MEDs
-`ff02::2` | Link-Local | All FTDs
-`ff03::1` | Mesh-Local | All FTDs and MEDs
-`ff03::2` | Mesh-Local | All FTDs
+| IPv6 Address | Scope | Delivered to |
+| ------------ | ---------- | ----------------- |
+| `ff02::1` | Link-Local | All FTDs and MEDs |
+| `ff02::2` | Link-Local | All FTDs |
+| `ff03::1` | Mesh-Local | All FTDs and MEDs |
+| `ff03::2` | Mesh-Local | All FTDs |
Key Point: A major difference between FTDs and MTDs are that FTDs subscribe to
the `ff03::2` multicast address. MTDs do not.
@@ -252,14 +252,14 @@
Thread defines the following ALOC16 values:
-ALOC16 | Type
----- | ----
-`0xfc00` | Leader
-`0xfc01` – `0xfc0f` | DHCPv6 Agent
-`0xfc10` – `0xfc2f` | Service
-`0xfc30` – `0xfc37` | Commissioner
-`0xfc40` – `0xfc4e` | Neighbor Discovery Agent
-`0xfc38` – `0xfc3f`<br>`0xfc4f` – `0xfcff` | Reserved
+| ALOC16 | Type |
+| ------------------------------------------ | ------------------------ |
+| `0xfc00` | Leader |
+| `0xfc01` – `0xfc0f` | DHCPv6 Agent |
+| `0xfc10` – `0xfc2f` | Service |
+| `0xfc30` – `0xfc37` | Commissioner |
+| `0xfc40` – `0xfc4e` | Neighbor Discovery Agent |
+| `0xfc38` – `0xfc3f`<br>`0xfc4f` – `0xfcff` | Reserved |
## Recap
