Squashed 'data_analytics' changes from 4f3b370..1e7bfcc (#651)

1e7bfcc add known issue for log analyzer (#368)
d0424c6 Merge pull request #366 from Zhenhong/next
e19857b refactor the release note
41e0257 Merge pull request #364 from Zhenhong/next
23dbee1 update typo error
5932f7e Merge pull request #362 from Zhenhong/next
cc173fe add known issue to release note

Co-authored-by: sdausr <sdausr@xilinx.com>

Author: 2 people

data_analytics/L2/demos/text/log_analyzer/README.md

@@ -87,3 +87,9 @@ note:
 
 1. The each line in the input log must has less than 4090 characters.
 2. The baseline version is a single thread program.
+
+
+## Known Issues
+
+* This case fails hardware build with 2022.1 Vitis. Please use 2021.2 Vitis for it,
+

data_analytics/docs/release.rst

@@ -29,6 +29,10 @@ The Data Analytics Library has the following addition in the 2022.1 release:
 * **csv scanner** could be used to accelerate the extract, transform and load process. It integrates GZIP decompression, CSV parser, filter module together to make them work in parallel. ETL accelerator could work together with database to run queries on large size of semi-structured and unstructured data.
 * **Geospatial APIs.** Two major APIs in this family has been included: the Spatial Join and KNN. The former API inserts the columns from one feature table to another based on location or proximity, while the latter is often used to find the K nearest neighbors around the center point. They are both vital for spatial analysis and spatial data mining.
 
+There are some known issues for this release.
+
+* Log Analyer in L2 demo fails hardware build with 2022.1 Vitis. Please use 2021.2 Vitis for it,
+
 2021.2
 ------
 
@@ -81,3 +85,5 @@ The 2020.1 release provides a range of HLS primitives for:
 * K-Means
 * Stochastic Gradient Descent Optimizer
 * L-BFGS Optimizer
+
+