Fix unresolved links in documentation

[tofpie]

This Pull Request fixes #957.

It changes the following:

• Unresolved or misinterpreted links in the documentation

[codecov]

Codecov Report

Merging #960 (beb2c45) into master (98e11d7) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #960      +/-   ##
==========================================
+ Coverage   59.29%   59.32%   +0.02%     
==========================================
  Files         166      166              
  Lines       10689    10687       -2     
==========================================
+ Hits         6338     6340       +2     
+ Misses       4351     4347       -4     

Impacted Files	Coverage Δ
boa/src/builtins/boolean/mod.rs	30.00% <ø> (ø)
boa/src/builtins/function/mod.rs	73.73% <ø> (ø)
boa/src/builtins/map/map_iterator.rs	71.92% <ø> (ø)
boa/src/builtins/number/conversions.rs	68.42% <ø> (ø)
boa/src/builtins/number/mod.rs	60.56% <ø> (ø)
boa/src/builtins/object/mod.rs	64.93% <ø> (ø)
boa/src/context.rs	61.26% <ø> (ø)
boa/src/environment/function_environment_record.rs	35.10% <ø> (ø)
boa/src/object/gcobject.rs	64.20% <ø> (ø)
boa/src/object/internal_methods.rs	57.14% <ø> (ø)
... and 9 more

---

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[Razican]

Thanks for the contribution! This cleans up a lot of stuff in the docs :)

I only noticed two minor things that could be improved.

[Razican]

I believe this is not correct, right? It should show [spec] next to [ECMAScript reference], and then, the links should not have <...>. Also, the spec link should not have a closing )

[Razican]

Thanks! This looks good to me :)