chg: updates Library and fixed Jekyll version problems in MacOs M1

Gemfile

@@ -1,8 +1,15 @@
 # Skinny Bones Gemfile
 source "https://rubygems.org"
 
-gem "jekyll", '= 4.0.1'
+gem "jekyll", '= 4.3.4'
 gem "jekyll-sitemap"
+
+gem 'logger'
+gem 'csv'
+gem 'ostruct'
+gem 'base64'
+gem 'bigdecimal'
+
 gem "sass"
 gem "bourbon"
 gem "neat"

README.md

@@ -15,7 +15,7 @@ Steps to Run ``bundle exec jekyll serve``
 
      ruby -v
 
-   If Ruby is not installed, you can install it using a package manager:
+   If Ruby 3.2.3 is not installed, you can install it using a package manager:
 
    - **MacOS**: Using Homebrew::
 

library/index.md

@@ -13,29 +13,29 @@ ads: false
 toc: true
 ---  
 
-**Under constructions**
+This library showcases R&D systems, including both proof-of-concept and production systems, that we have developed and that we made available to the general public.
 
-**UI Design**
-- [XXX](/library/2023-04-12-Security_Operations_Lecture.pdf) (SecOps) integrates monitoring, tools, processes, and technology to keep IT secure while reducing risk.
 
-**Cloud Computing, intelligent management**
-- [Security Operations](/library/2023-04-12-Security_Operations_Lecture.pdf) (lecture at TUB) SecOps integrates monitoring, tools, processes, and technology to keep IT secure while reducing risk.
-- [Intelligent Log Analysis](/library/2020-02-22-Intelligent_Log_Analysis_lecture.pdf) (lecture at TUB): Explore the use of structured logging to facilitate the application of AI/ML methods for Root-cause analysis
+**Cloud and intelligent management** (1)
+
+- [Security Operations](/library/2023-04-12-Security_Operations_Lecture.pdf): SecOps integrates monitoring, tools, processes, and technology to keep IT secure while reducing risk.
+- [Intelligent Log Analysis](/library/2020-02-22-Intelligent_Log_Analysis_lecture.pdf): Explore the use of structured logging to facilitate the application of AI/ML methods for Root-cause analysis
 - [Cloud Computing](/library/cloud_computing): Overview, concept, web APIs, platforms, applications, and BPM  
 - [Hypervisor Reliability](/library/2023-12-20_Hypervisor_Anomaly_Detection_Lecture.pdf): Identifying health issues of hypervisors correlated with latent failures. 
 
 
-**Openstack, distributed tracing**
-- Lectures at TUM and TUB
-- [Introduction](/library/openstack/Part_1_Introduction.pdf) Hyperscalers, cloud monitoring, AI and O&M, monitoring formats, ML for O&M. 
-- [OpenStack Cloud OS](/library/openstack/Part_2_OpenStack_Cloud.pdf) Virtualization, public clouds, openstack system design, openstack services (IMS, compute, nova, scheduler, network, storage).  
-- [OpenStack Hands-on](/library/openstack/Part_3_Openstack_Hands-on.pdf) Setup infrastructure, install Openstack, CLI, launch instances, attach volumes, create networks, distributed tracing.
-- [Distributed Tracing Technologies](/library/openstack/Part_4_Distributed_Tracing_Technologies.pdf) Workflow for VM creation, tracing concetps, tracing systems, Zipkin, Jaeger, OpenTracing, OSProfiler.  
-- [Distributed Trace Analysis](/library/openstack/Part_5_Distributed_Trace_Analysis.pdf) Monitoring data sources, troubleshooting with tracing, feature selection, trace abstraction, time series analysis, sequence analysis. LSTM.  
-- [Distributed Trace Analysis (Hands-on)](/library/openstack/Part_6_Distributed_Trace_Analysis_Hands_on.ipynb) Jupyter notebook with running code for dsitributed trace analysis for Openstack.
-- [Cloud Benchmarking](/library/openstack/Part_8_Cloud_Benchmarking.pdf) Benchmarking public cloud platforms, ECS and RDS benchmarking.   
+<div style="margin-bottom: 15px;"></div>
+**Openstack and distributed tracing** (1,2)
 
-**Service management, frameworks**
-- [ITIL](/library/2023-04-12-Security_Operations_Lecture.pdf) (SecOps) integrates monitoring, tools, processes, and technology to keep IT secure while reducing risk.
+- [Introduction](/library/openstack/Part_1_Introduction.pdf): Hyperscalers, cloud monitoring, AI and O&M, monitoring formats, ML for O&M. 
+- [OpenStack Cloud OS](/library/openstack/Part_2_OpenStack_Cloud.pdf): Virtualization, public clouds, openstack system design, openstack services (IMS, compute, nova, scheduler, network, storage).  
+- [OpenStack Hands-on](/library/openstack/Part_3_Openstack_Hands-on.pdf): Setup infrastructure, install Openstack, CLI, launch instances, attach volumes, create networks, distributed tracing.
+- [Distributed Tracing Technologies](/library/openstack/Part_4_Distributed_Tracing_Technologies.pdf): Workflow for VM creation, tracing concetps, tracing systems, Zipkin, Jaeger, OpenTracing, OSProfiler.  
+- [Distributed Trace Analysis](/library/openstack/Part_5_Distributed_Trace_Analysis.pdf): Monitoring data sources, troubleshooting with tracing, feature selection, trace abstraction, time series analysis, sequence analysis. LSTM.  
+- [Distributed Trace Analysis (Hands-on)](/library/openstack/Part_6_Distributed_Trace_Analysis_Hands_on.ipynb): Jupyter notebook with running code for dsitributed trace analysis for Openstack.
+- [Cloud Benchmarking](/library/openstack/Part_8_Cloud_Benchmarking.pdf): Benchmarking public cloud platforms, ECS and RDS benchmarking.   
 
 
+<div style="margin-bottom: 15px;"></div>
+<p style="font-size: 0.75em;"> (1) Technical University of Berlin (TUB), (2) Technical University of Munich (TUM)  </p>
+