feat: add GitHub Actions workflow for Hugging Face Hub publishing and…

… create space configuration file for ISCC-LAB project

.github/workflows/huggingface.yml

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+name: Publish on Hugging Face Hub
+on:
+  push:
+    branches:
+      - huggingface
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Sync with Hugging Face
+      uses: nateraw/huggingface-sync-action@v0.0.4
+      with:
+        github_repo_id: iscc/iscc-sct
+        huggingface_repo_id: iscc/iscc-sct
+        repo_type: space
+        space_sdk: gradio
+        hf_token: ${{ secrets.HF_TOKEN }}

space.yml

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+---
+title: ISCC-LAB - Semantic-Code Text
+emoji: ▶️
+colorFrom: red
+colorTo: blue
+sdk: gradio
+sdk_version: 4.41.0
+app_file: iscc_sct/demo.py
+pinned: true
+license: CC-BY-NC-SA-4.0
+short_description: Cross Lingual Similarity Preserving Text Simprints
+---
+# ISCC-LAB - Semantic-Code Text
+
+`iscc-sct` is a **proof of concept implementation** of a semantic Text-Code for the
+[ISCC](https://core.iscc.codes) (*International Standard Content Code*). Semantic Text-Codes are
+short identifiers created from text documents that preserve similarity (in hamming distance)
+for semantically similar cross-lingual text inputs.
+
+## What is the ISCC
+
+The ISCC is a combination of various similarity preserving fingerprints and an identifier for
+digital media content.
+
+ISCCs are generated algorithmically from digital content, just like cryptographic hashes. However,
+instead of using a single cryptographic hash function to identify data only, the ISCC uses various
+algorithms to create a composite identifier that exhibits similarity-preserving properties (soft
+hash or Simprint).
+
+The component-based structure of the ISCC identifies content at multiple levels of abstraction. Each
+component is self-describing, modular, and can be used separately or with others to aid in various
+content identification tasks. The algorithmic design supports content deduplication, database
+synchronization, indexing, integrity verification, timestamping, versioning, data provenance,
+similarity clustering, anomaly detection, usage tracking, allocation of royalties, fact-checking and
+general digital asset management use-cases.
+
+
+## ISCC Status
+
+The [ISCC](https://iscc.codes) is an ISO Standrad published under
+[ISO 24138:2024](https://www.iso.org/standard/77899.html) - International Standard Content Code
+within [ISO/TC 46/SC 9/WG 18](https://www.iso.org/committee/48836.html).
+
+The algorithms of this `iscc-sct` are experimental and not (yet) part of the official standard.