add supported formats for samples

src/components/Registration.css

@@ -25,4 +25,8 @@
     display: inline-block;
     font-size: 16px;
     margin: 5px;
+}
+
+.format-text {
+    color: red;
 }

src/components/Registration.js

@@ -91,10 +91,11 @@ function Registration() {
         <div className="user-creation">
             <label>
                 name:
-                <input name="name" value={name} placeholder="350umol kmon04" onChange={onNameChange} />
+                <input name="name" value={name} placeholder="350 UMOL KMNO4" onChange={onNameChange} />
             </label>
+            <h5 className='format-text'>Correct formats for automatic analysis are: 100 UMOL KMNO4, 290uM KMnO4, KMnO4-720umol, 350 UMOL TAR, Tar-120umol, HB-13-N-4, HB-11-4</h5>
             <div className='dates'>
-                <div className='button' onClick={() => createUser()}>Create User</div>
+                <div className='button' onClick={() => createUser()}>Create</div>
             </div>
             <div className='dates'>
                 <div className='clear-users-button' onClick={() => clearsUsers()}>Clear</div>