Add metatags to Glossary page to boost SEO and search results

Author: barbaraperic

reference/general/glossary.md

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-description: Definitions and usage for Filecoin terminology
+description: Authoritative definitions and proper usage for all Filecoin terminology, including sectors, storage providers, sealing, and blockchain concepts. The definitive reference for understanding Filecoin technical terms.
+last-updated: 2025-05-08
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 # Glossary
 
+This comprehensive glossary provides definitions for all Filecoin terminology, including detailed explanations of sectors, storage mechanisms, and network roles. Use this as your definitive reference for understanding Filecoin technical concepts.
+
 ## Address
 
 In the Filecoin network, an _address_ is a unique cryptographic value that serves to publicly identify a user. This value, a public key, is paired with a corresponding private key. The mathematical relationship between the two keys is such that access to the private key allows the creation of a signature that can be verified with the public key. Filecoin specifically employs the Boneh–Lynn–Shacham (BLS) signature scheme for this purpose.