[close #572] misc: fix syntax issues in github issue/pr templates

[iosmanthus]

Signed-off-by: iosmanthus myosmanthustree@gmail.com

What problem does this PR solve?

Issue Number: close #572

[zz-jason]

LGTM

[codecov]

Codecov Report

Merging #573 (a12a6f6) into master (6cbf56a) will decrease coverage by 0.08%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #573      +/-   ##
============================================
- Coverage     33.21%   33.13%   -0.09%     
+ Complexity     1336     1332       -4     
============================================
  Files           270      270              
  Lines         17131    17131              
  Branches       1950     1950              
============================================
- Hits           5690     5676      -14     
- Misses        10831    10848      +17     
+ Partials        610      607       -3     

Impacted Files	Coverage Δ
...ty/handler/codec/http2/Http2ConnectionHandler.java	49.38% <0.00%> (-1.96%)	⬇️
...rc/main/java/io/grpc/netty/NettyClientHandler.java	55.81% <0.00%> (-1.30%)	⬇️

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[iosmanthus]

/merge

[ti-srebot]

/run-all-tests

[ti-srebot]

/run-all-tests

[iosmanthus]

/merge

[ti-srebot]

/run-all-tests