timely 0.5.0

A low-latency data-parallel dataflow system in Rust
Documentation
# Summary

[Timely Dataflow](./introduction.md)

- [Motivation]./chapter_0/chapter_0.md
    - [A Simple Example]./chapter_0/chapter_0_1.md
    - [When to use Timely Dataflow]./chapter_0/chapter_0_2.md
    - [When not to use Timely Dataflow]./chapter_0/chapter_0_3.md

- [Core Concepts]./chapter_1/chapter_1.md
    - [Dataflow]./chapter_1/chapter_1_1.md
    - [Timestamps]./chapter_1/chapter_1_2.md    
    - [Progress]./chapter_1/chapter_1_3.md

- [Building Timely Dataflows]./chapter_2/chapter_2.md
    - [Creating Inputs]./chapter_2/chapter_2_1.md
    - [Observing Outputs]./chapter_2/chapter_2_2.md
    - [Adding Operators]./chapter_2/chapter_2_3.md
    - [Creating Operators]./chapter_2/chapter_2_4.md
    - [A Worked Example]./chapter_2/chapter_2_5.md

- [Running Timely Dataflows]./chapter_3/chapter_3.md
    - [Providing Input]./chapter_3/chapter_3_1.md
    - [Monitoring Probes]./chapter_3/chapter_3_2.md
    - [Operator Execution]./chapter_3/chapter_3_3.md
    - [Extending Dataflows]./chapter_3/chapter_3_4.md

- [Advanced Timely Dataflow]./chapter_4/chapter_4.md
    - [Scopes]./chapter_4/chapter_4_1.md
    - [Iteration]./chapter_4/chapter_4_2.md
    - [Flow Control]./chapter_4/chapter_4_3.md
    - [Capture and Replay]./chapter_4/chapter_4_4.md

- [Internals]./chapter_5/chapter_5.md
    - [Communication]./chapter_5/chapter_5_1.md
    - [Progress Tracking]./chapter_5/chapter_5_2.md