docs(text-field): fix duplicated "from" in example

[eligao]

No description provided.

[googlebot]

Thanks for your pull request. It looks like this may be your first contribution to a Google open source project (if not, look below for help). Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

📝 Please visit https://cla.developers.google.com/ to sign.

Once you've signed (or fixed any issues), please reply here (e.g. I signed it!) and we'll verify it.

---

What to do if you already signed the CLA

Individual signers

• It's possible we don't have your GitHub username or you're using a different email address on your commit. Check your existing CLA data and verify that your email is set on your git commits.

Corporate signers

• Your company has a Point of Contact who decides which employees are authorized to participate. Ask your POC to be added to the group of authorized contributors. If you don't know who your Point of Contact is, direct the Google project maintainer to go/cla#troubleshoot (Public version).
• The email used to register you as an authorized contributor must be the email used for the Git commit. Check your existing CLA data and verify that your email is set on your git commits.
• The email used to register you as an authorized contributor must also be attached to your GitHub account.

ℹ️ Googlers: Go here for more info.

[codecov-io]

Codecov Report

Merging #687 into rc0.11.0 will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           rc0.11.0     #687   +/-   ##
=========================================
  Coverage     94.88%   94.88%           
=========================================
  Files            68       68           
  Lines          2853     2853           
  Branches        432      432           
=========================================
  Hits           2707     2707           
  Misses           50       50           
  Partials         96       96

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 52eeb52...d1b46ac. Read the comment docs.

[moog16]

Yikes! Thanks for catching that.

[moog16]

@eligao please comment "I signed it!"

[eligao]

Sorry for forgetting replying.
I've signed it!

[googlebot]

CLAs look good, thanks!

ℹ️ Googlers: Go here for more info.

[moog16]

thanks!