Correcting the grammatical errors in many files

[soma2000-lang]

Description

In the docs folder of envis edge there are several files having grammatical errors.Those have been corrected in this PR.

Checklist

• [x] I have followed the Contribution Guidelines and Code of Conduct
• [x] I have commented my code following the NimbleEdge Styleguide
• [x] I have labeled this PR with the relevant Type labels
• [x] My changes are covered by tests

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[soma2000-lang]

@ramesht007 Please look into this.