[TLUL/Doc] Minor doc wording fixes

- Fix N:1 to M:1 and make Get and Put look more consistent
diff --git a/hw/ip/tlul/doc/_index.md b/hw/ip/tlul/doc/_index.md
index d30b28f..79b3d2d 100644
--- a/hw/ip/tlul/doc/_index.md
+++ b/hw/ip/tlul/doc/_index.md
@@ -209,7 +209,7 @@
 in-order responses). For permission detection, static host identifiers
 will be transmitted in the user field (see below).
 
-Some bus primitives, such as `N:1` sockets, need to add source bits
+Some bus primitives, such as `M:1` sockets, need to add source bits
 during request routing in order to be able to correctly route the
 response. For instance, if one destination is addressed by N potential
 hosts, log<sub>2</sub>N more source ID bits need to be added to the
@@ -295,7 +295,7 @@
 
 #### Usage of Opcode, Size and Mask
 
-The request opcode (`a_opcode`) can designate between a write (put)
+The request opcode (`a_opcode`) can designate between a write (`'Put'`)
 and a read (`'Get'`) transaction. Writes can be designated as full
 (`'PutFullData'`) or partial (`'PutPartialData'`) within the opcode
 space. The request size (`a_size`) and mask (`a_mask`) is defined for