docs: fix wrong mention of angular -> angular.js

[bram-pkg]

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[x] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Currently it's telling people to exclude Angular of search results.

What is the new behavior?

Corrected to tell people to exclude Angular.js

Does this PR introduce a breaking change?

[ ] Yes
[x] No

[bram-pkg]

Sorry, I used the wrong format for the commit message. Hopefully it is fine.

[netlify]

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[wzhudev]

LGTM