doc: remove unnecessary bold style in README

[gitcommitshow]

Description

Fix the missing bold tag in README html

Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

Base: 45.18% // Head: 41.64% // Decreases project coverage by -3.54% ⚠️

Coverage data is based on head (f14add2) compared to base (096db9c).
Patch has no changes to coverable lines.

❗ Current head f14add2 differs from pull request most recent head cdd8db9. Consider uploading reports for the commit cdd8db9 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2509      +/-   ##
==========================================
- Coverage   45.18%   41.64%   -3.55%     
==========================================
  Files         175      175              
  Lines       36356    36357       +1     
==========================================
- Hits        16429    15140    -1289     
- Misses      18848    20272    +1424     
+ Partials     1079      945     -134     

Impacted Files	Coverage Δ
warehouse/staging_file.go	0.00% <0.00%> (-100.00%)	⬇️
warehouse/warehousegrpc.go	0.00% <0.00%> (-96.16%)	⬇️
warehouse/retry.go	0.00% <0.00%> (-87.59%)	⬇️
warehouse/table_upload.go	0.00% <0.00%> (-87.38%)	⬇️
warehouse/api.go	0.00% <0.00%> (-70.43%)	⬇️
warehouse/stats.go	0.00% <0.00%> (-62.50%)	⬇️
warehouse/db.go	12.37% <0.00%> (-52.58%)	⬇️
warehouse/archiver.go	3.15% <0.00%> (-46.40%)	⬇️
warehouse/schema.go	9.76% <0.00%> (-45.80%)	⬇️
jobsdb/internal/lock/lock.go	71.42% <0.00%> (-23.93%)	⬇️
... and 10 more

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