fix: add missing frame link definitions in rustdoc

Add link target definitions for [FRAME](frame) markdown links
in glossary.rs and runtime_vs_smart_contract.rs to fix
rustdoc broken intra-doc links error.

docs/sdk/src/reference_docs/glossary.rs

@@ -118,3 +118,5 @@
 //! network.
 //!
 //! **Synonyms**: Teyrchain Validation Function
+//!
+//! [frame]: crate::pezkuwi_sdk::frame_runtime

docs/sdk/src/reference_docs/runtime_vs_smart_contract.rs

@@ -207,3 +207,5 @@
 //! - **For Smart Contract Developers**: Being mindful of the gas cost associated with contract
 //!   execution is crucial. Efficiently written contracts save costs and are less likely to hit gas
 //!   limits, ensuring smoother execution on the blockchain.
+//!
+//! [frame]: crate::pezkuwi_sdk::frame_runtime