workflow: use `gh` cli instead of `hub` [skip ci]

Also update docs

.github/workflows/release.yml

@@ -137,14 +137,16 @@ jobs:
         uses: actions/download-artifact@v2
         with:
           path: artifacts
-      - name: Install Hub CLI
+      - name: Install GitHub CLI
         run: |
           sudo apt update
-          sudo apt install hub -y
+          sudo apt install gh -y
       - name: Upload release binaries
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           TAG_NAME: ${{ env.VERSION }}
         run: |
-          hub release edit $(find . -type f -name "*.zip" -printf "-a %p ") -m "" "$TAG_NAME"
-          hub release edit $(find . -type f -name "*.deb" -printf "-a %p ") -m "" "$TAG_NAME"
+          gh auth login --with-token <<< $GITHUB_TOKEN
+          for file in $(find ./artifacts/ -type f -name "*.zip" -o -name "*.deb"); do
+            gh release upload "$TAG_NAME" "$file"
+          done

README.md

@@ -14,25 +14,25 @@
 
 ## 💡 What is Skytable?
 
-Skytable is a **modern NoSQL database** that focuses on **performance, flexibility and scalability**. Our goal is to deliver **a rock-solid database** that you can use as the foundation for your next application — **minus the gimmicks**.
+Skytable is a **modern NoSQL database** that focuses on **performance, flexibility and scalability**. Skytable
+is a primarily in-memory, wide-column based database with support for additional data models<sup>*</sup> that 
+uses its own storage engine (structured like n-ary records with optimized delayed-durability transactions) and 
+enables querying with its own query language *BlueQL* that is based on SQL which builds on SQL to improve 
+security and flexibility.
 
-Skytable makes every attempt to **remove the gotchas from SQL-systems**. For example, nonempty `model`s and `space`s cannot be dropped and **BlueQL is designed to greatly deter SQL injection vulnerabilities** with a new **mandatory parameterization** design and several other **secure query language design principles**.
-
-Every component in Skytable has been **engineered from the ground up** to meet our design goals. **Skytable uses BlueQL<sup>TM</sup>** which is our own **new in-house query language** designed from the ground up for a **clean, powerful, modern and secure querying experience** and is **generally more secure than SQL**.
-
-Skytable works with **structured and semi-structured data**. We're currently working on supporting unstructured data.
+Skytable is best-suited for applications that need to store large-scale data, need high-performance and low 
+latencies.
 
 > **You can read more about Skytable's architecture, including information on the clustering and HA implementation that we're currently working on, and limitations [on this page](https://docs.skytable.io/architecture).**
 
 ## 🎨 Features
 
 - **Spaces, models and more**: For flexible data definition
-- **Powerful querying with BlueQL**: A modern query language, designed for the 21<sup>st</sup> century
+- **Powerful querying with BlueQL**: A modern query language based on SQL
 - **Rich data modeling**: Use `model`s to define data with complex types, collections and more
-- **Performant, in and out of the box**: Heavily multithreaded and optimized
-- **Secure, query in and response out**: BlueQL is designed to strongly deter query injection pathways
-- **SQL minus the gotchas**: Ever done a `DROP TABLE users` and lost all data? **That won't happen in Skytable**.
-- **Designed to scale by enforcing best practices**: If you're building with Skytable today, the practices you'll learn here will let you easily take on the job of building large scale systems
+- **Performant**: Heavily multithreaded, optimized write batching and more
+- **Secure**: BlueQL is designed to strongly deter query injection pathways
+- **Enforces best practices**: If you're building with Skytable today, the practices you'll learn here will let you easily take on the job of building performant systems, even outside Skytable
 
 > Learn more about [Skytable's features here](https://docs.skytable.io).