README.md links to outdated thread on forum.fhem.de fixed

[sidey79]

• Please check if the PR fulfills these requirements
• [ ] Tests for the changes have been added / modified (needed for for bug fixes / features)
• [ ] commandref has been added / updated (needed for bug fixes / features)

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

• [ ] Bugfix (please link issue)

• [ ] Feature enhancement

• [x] Documentation update

• [ ] Unittest enhancement

• [ ] other

• What is the current behavior? (You can also link to an open issue here, if this describes the current behavior)

Fixes #957

• What is the new behavior (if this is a feature change)?

1. Link goes to Board and not to a thread
2. Version number is up to date in readme

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)

no

• Other information:

[codecov[bot]]

Codecov Report

Merging #1053 (2abc12f) into master (a828251) will increase coverage by 0.07%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1053      +/-   ##
==========================================
+ Coverage   61.27%   61.34%   +0.07%     
==========================================
  Files         126      127       +1     
  Lines        9348     9353       +5     
  Branches     1479     1479              
==========================================
+ Hits         5728     5738      +10     
+ Misses       2546     2541       -5     
  Partials     1074     1074              

Flag	Coverage Δ
fhem	52.52% <ø> (+0.02%)	:arrow_up:
modules	61.34% <ø> (+0.07%)	:arrow_up:
perl	91.83% <ø> (+0.21%)	:arrow_up:
unittests	61.34% <ø> (+0.07%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
t/FHEM/14_FLAMINGO/00_load.t	100.00% <0.00%> (ø)
FHEM/lib/SD_Protocols.pm	79.72% <0.00%> (+0.57%)	:arrow_up:

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