docs: API documentation fixes

Change-Id: I1088a156c9ac055f974900454647dcb9a7b7ec54
Refs: #3210
diff --git a/src/encoding/block-helpers.hpp b/src/encoding/block-helpers.hpp
index 5f26b17..fcc8458 100644
--- a/src/encoding/block-helpers.hpp
+++ b/src/encoding/block-helpers.hpp
@@ -82,7 +82,7 @@
 prependStringBlock(EncodingImpl<TAG>& encoder, uint32_t type, const std::string& value);
 
 /**
- * @brief Create a TLV block type @p type with value from a string @p
+ * @brief Create a TLV block type @p type with value from a string @p value
  * @see prependStringBlock, readString
  */
 Block